Great Circle Distances – On the Equator #3

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Video Lessons

1. Multiply Binomials #1
2. Multiply Binomials #2
3. Multiply Binomials #3
4. Multiply Binomials #4
5. Multiply Binomials #5
6. Multiply Binomials #6
7. FOIL Method #1
8. FOIL Method #2
9. FOIL Method #3
10. FOIL Method #4
11. FOIL Method #5
12. FOIL Method #6
13. FOIL Method – Same First Variable #1
14. FOIL Method – Same First Variable #2
15. FOIL Method – Same First Variable #3
16. FOIL Method – Same First Variable #4
17. FOIL Method – Same First Variable #5
18. FOIL Method – Same First Variable #6
19. FOIL Method – Same First Variable #7
20. FOIL Method – Same First Variable #8
21. FOIL Method – Same First Variable #9
22. FOIL Method – 3 Terms #1
23. FOIL Method – 3 Terms #2
24. FOIL Method – 3 Terms #3
25. FOIL Method – 3 Terms #4
26. Expand Perfect Squares #1
27. Expand Perfect Squares #2
28. Expand Perfect Squares #3
29. Expand Perfect Squares #4
30. Expand Perfect Squares #5
31. Expand Perfect Squares #6
32. Expand Perfect Squares #7
33. Difference of Two Squares #1
34. Difference of Two Squares #2
35. Difference of Two Squares #3
36. Difference of Two Squares #4
37. Difference of Two Squares #5
38. Difference of Two Squares #6
39. Difference of Two Squares #7
40. Difference of Two Squares – Longer Expression #1
41. Difference of Two Squares – Longer Expression #2
42. Difference of Two Squares – Longer Expression #3
43. Difference of Two Squares – Longer Expression #4
44. Difference of Two Squares – Longer Expression #5
45. Difference of Two Squares – Longer Expression #6
46. Multiply Binomials 1
47. Multiply Binomials #2
48. Multiply Binomials #3
49. Multiply Binomials #4
50. Multiply Binomials #5
51. Multiply Binomials #6
52. FOIL Method #1
53. FOIL Method #2
54. FOIL Method #3
55. FOIL Method #4
56. FOIL Method #5
57. FOIL Method #6
58. FOIL Method – Same First Variable #1
59. FOIL Method – Same First Variable #2
60. FOIL Method – Same First Variable #3
61. FOIL Method – Same First Variable #4
62. FOIL Method – Same First Variable #5
63. FOIL Method – Same First Variable #6
64. FOIL Method – Same First Variable #7
65. FOIL Method – Same First Variable #8
66. FOIL Method – Same First Variable #9
67. FOIL Method – 3 Terms #1
68. FOIL Method – 3 Terms #2
69. FOIL Method – 3 Terms #3
70. FOIL Method – 3 Terms #4
71. Expand Perfect Squares #1
72. Expand Perfect Squares #2
73. Expand Perfect Squares #3
74. Expand Perfect Squares #4
75. Expand Perfect Squares #5
76. Expand Perfect Squares #6
77. Expand Perfect Squares #7
78. Difference of Two Squares #1
79. Difference of Two Squares #2
80. Difference of Two Squares #3
81. Difference of Two Squares #4
82. Difference of Two Squares #5
83. Difference of Two Squares #6
84. Difference of Two Squares #7
85. Difference of Two Squares – Longer Expression #1
86. Difference of Two Squares – Longer Expression #2
87. Difference of Two Squares – Longer Expression #3
88. Difference of Two Squares – Longer Expression #4
89. Difference of Two Squares – Longer Expression #5
90. Difference of Two Squares – Longer Expression #6
91. Solving Rational Equations – LCD #1
92. Solving Rational Equations – Cross Product Property #1
93. Solving Rational Equations – Cross Product Property #2
94. Intro to Radicals #1
95. Simplify Radicals #1
96. Simplify Radicals #2
97. Simplify Radicals #3
98. Simplify Radicals #4
99. Simplify Radicals #5
100. Simplify Radicals – Coefficient #1
101. Simplify Radicals – Coefficient #2
102. Simplify Radicals with Variables #1
103. Simplify Radicals with Variables – Powers #1
104. Simplify Radicals with Variables – Powers #2
105. Simplify Radicals with Variables – Powers #3
106. Simplify Radicals with Variables – Powers #4
107. Simplify Radicals with Variables – Powers #5
108. Simplify Radicals with Variables – Powers #6
109. Simplify Radicals with Variables – Powers and Factorising #1
110. Simplify Radicals with Variables – Complex Powers #1
111. Simplify Radicals with Variables – Complex Powers #2
112. Simplify Radicals with Variables – Complex Powers #3
113. Simplify Radicals with Variables – Cube Root and Powers #1
114. Simplify Radicals with Variables – Cube Root and Powers #2
115. Add & Subtract Radicals #1
116. Add & Subtract Radicals #2
117. Add & Subtract Radicals #3
118. Add & Subtract Radicals #4
119. Multiply Radicals #1
120. Multiply Radicals #2
121. Multiply Radicals #3
122. Multiply Radicals #4
123. Multiply Radicals – Coefficient #1
124. Multiply Radicals – Coefficient #2
125. Multiply Radicals – Coefficient #3
126. Multiply Radicals – Coefficient #4
127. Multiply Radicals – Coefficient #5
128. Multiply Radicals – Coefficient #6
129. Divide Radicals #1
130. Divide Radicals #2
131. Divide Radicals #3
132. Divide Radicals #4
133. Divide Radicals #5
134. Divide Radicals #6
135. Divide Radicals #7
136. Divide Radicals #8
137. Multiply & Divide Radicals with Variables #1
138. Multiply & Divide Radicals with Variables #2
139. Multiply & Divide Radicals with Variables #3
140. Simplify Radicals using the Distributive Property #1
141. Simplify Radicals using the Distributive Property #2
142. Simplify Radicals using the Distributive Property #3
143. Simplify Radicals using the Distributive Property #4
144. Simplify Radicals using the Distributive Property #5
145. Simplify Radicals using the Distributive Property #6
146. Simplify Radicals using the Distributive Property #7
147. Rationalizing the Denominator #1
148. Rationalizing the Denominator #2
149. Rationalizing the Denominator #3
150. Rationalizing the Denominator #4
151. Rationalizing the Denominator #5
152. Rationalizing the Denominator #6
153. Rationalizing the Denominator #7
154. Rationalizing the Denominator #8
155. Rationalizing Binomial Denominators #1
156. Rationalizing Binomial Denominators #2
157. Rationalizing Binomial Denominators #3
158. Intro to Radicals #1
159. Simplify Radicals #1
160. Simplify Radicals #2
161. Simplify Radicals #3
162. Simplify Radicals #4
163. Simplify Radicals #5
164. Simplify Radicals – Coefficient #1
165. Simplify Radicals – Coefficient #2
166. Simplify Radicals with Variables #1
167. Simplify Radicals with Variables – Powers #1
168. Simplify Radicals with Variables – Powers #2
169. Simplify Radicals with Variables – Powers #3
170. Simplify Radicals with Variables – Powers #4
171. Simplify Radicals with Variables – Powers #5
172. Simplify Radicals with Variables – Powers #6
173. Simplify Radicals with Variables – Powers and Factorising #1
174. Simplify Radicals with Variables – Complex Powers #1
175. Simplify Radicals with Variables – Complex Powers #2
176. Simplify Radicals with Variables – Complex Powers #3
177. Simplify Radicals with Variables – Cube Root and Powers #1
178. Simplify Radicals with Variables – Cube Root and Powers #2
179. Add & Subtract Radicals #1
180. Add & Subtract Radicals #2
181. Add & Subtract Radicals #3
182. Add & Subtract Radicals #4
183. Multiply Radicals #1
184. Multiply Radicals #2
185. Multiply Radicals #3
186. Multiply Radicals #4
187. Multiply Radicals – Coefficient #1
188. Multiply Radicals – Coefficient #2
189. Multiply Radicals – Coefficient #3
190. Multiply Radicals – Coefficient #4
191. Multiply Radicals – Coefficient #5
192. Multiply Radicals – Coefficient #6
193. Divide Radicals #1
194. Divide Radicals #2
195. Divide Radicals #3
196. Divide Radicals #4
197. Divide Radicals #5
198. Divide Radicals #6
199. Divide Radicals #7
200. Divide Radicals #8
201. Multiply & Divide Radicals with Variables #1
202. Multiply & Divide Radicals with Variables #2
203. Multiply & Divide Radicals with Variables #3
204. Simplify Radicals using the Distributive Property #1
205. Simplify Radicals using the Distributive Property #2
206. Simplify Radicals using the Distributive Property #3
207. Simplify Radicals using the Distributive Property #4
208. Simplify Radicals using the Distributive Property #5
209. Simplify Radicals using the Distributive Property #6
210. Simplify Radicals using the Distributive Property #7
211. Rationalizing the Denominator #1
212. Rationalizing the Denominator #2
213. Rationalizing the Denominator #3
214. Rationalizing the Denominator #4
215. Rationalizing the Denominator #5
216. Rationalizing the Denominator #6
217. Rationalizing the Denominator #7
218. Rationalizing the Denominator #8
219. Rationalizing Binomial Denominators #1
220. Rationalizing Binomial Denominators #2
221. Rationalizing Binomial Denominators #3
222. Elimination Method #1
223. Elimination Method #2
224. Elimination Method #3
225. Elimination Method #4
226. Elimination Method #5
227. Elimination Method #6
228. Elimination Method #7
229. Elimination Method #8
230. Elimination Method #9
231. Elimination Method #10
232. Elimination Method #11
233. Elimination Method #12
234. Elimination Method #13
235. Elimination Method #14
236. Elimination Method – Challenge #1
237. Elimination Method – Challenge #2
238. Elimination Method – Word Problem #1
239. Elimination Method – Word Problem #2
240. Elimination Method – Word Problem #3
241. Elimination Method – Word Problem #4
242. Elimination Method – Word Problem (Geometry) #1
243. Elimination Method – Word Problem (Geometry) #2
244. Elimination Method – Word Problem (Geometry) #3
245. Elimination Method – Word Problem (Geometry) #4
246. Substitution Method – Word Problem #1
247. Substitution Method – Word Problem #2
248. 3 Variable System of Equation – Substitution Method #1
249. 3 Variable System of Equation – Substitution Method #2
250. 3 Variable System of Equation – Elimination Method #1
251. 3 Variable System of Equation – Elimination Method #2
252. 3 Variable System of Equation – Elimination Method #3
253. 3 Variable System of Equation – Elimination Method #4
254. 3 Variable System of Equation – Elimination Method #5
255. Substitution Method #1
256. Substitution Method #2
257. Substitution Method #3
258. Substitution Method #4
259. Substitution Method #5
260. Substitution Method #6
261. Substitution Method #7
262. Substitution Method #8
263. Substitution Method #9
264. Substitution Method #10
265. Substitution Method #11
266. Substitution Method #12
267. Substitution Method #13
268. Substitution Method #14
269. Elimination Method #1
270. Elimination Method #2
271. Elimination Method #3
272. Elimination Method #4
273. Elimination Method #5
274. Elimination Method #6
275. Elimination Method #7
276. Elimination Method #8
277. Elimination Method #9
278. Elimination Method #10
279. Elimination Method #11
280. Elimination Method #12
281. Elimination Method #13
282. Elimination Method #14
283. Elimination Method – Challenge #1
284. Elimination Method – Challenge #2
285. Elimination Method – Word Problem #1
286. Elimination Method – Word Problem #2
287. Elimination Method – Word Problem #3
288. Elimination Method – Word Problem #4
289. Elimination Method – Word Problem (Geometry) #1
290. Elimination Method – Word Problem (Geometry) #2
291. Elimination Method – Word Problem (Geometry) #3
292. Elimination Method – Word Problem (Geometry) #4
293. Substitution Method – Word Problem #1
294. Substitution Method – Word Problem #2
295. 3 Variable System of Equation – Substitution Method #1
296. 3 Variable System of Equation – Substitution Method #2
297. 3 Variable System of Equation – Elimination Method #1
298. 3 Variable System of Equation – Elimination Method #2
299. 3 Variable System of Equation – Elimination Method #3
300. 3 Variable System of Equation – Elimination Method #4
301. 3 Variable System of Equation – Elimination Method #5
302. Solve a Quadratic by Factoring #1
303. Solve a Quadratic by Factoring #2
304. Solve a Quadratic by Factoring #3
305. Solve a Quadratic by Factoring #4
306. Solve a Quadratic using the Quadratic Formula #1
307. Solve a Quadratic using the Quadratic Formula #2
308. Solve a Quadratic using the Quadratic Formula #3
309. Solve a Quadratic using the Quadratic Formula #4
310. Solve a Quadratic using the Quadratic Formula #5
311. Solve a Quadratic using the Quadratic Formula – Grouping #1
312. Solve a Quadratic by Completing the Square #1
313. Solve a Quadratic by Completing the Square #2
314. Solve a Quadratic by Completing the Square #3
315. Solve a Quadratic by Completing the Square #4
316. Solve a Quadratic by Completing the Square #5
317. Solve a Quadratic by Completing the Square #6
318. Solve a Quadratic by Completing the Square #7
319. Solve a Quadratic by Completing the Square #8
320. Solve a Quadratic by Completing the Square #9
321. Solve a Quadratic by Completing the Square – Find the Vertex #1
322. Concavity of a Parabola #1
323. Concavity of a Parabola #2
324. Parabolas at the Origin #1
325. Parabolas at the Origin #2
326. Graph Parabolas in Basic Form #1
327. Graph Parabolas in Basic Form #2
328. Write an Equation for a Parabola in Basic Form #1
329. Write an Equation for a Parabola in Basic Form #2
330. Graph a Quadratic in Standard Form #1
331. Graph a Quadratic in Standard Form #2
332. Graph a Quadratic in Standard Form #3
333. Graph a Quadratic in Standard Form #4
334. Graph a Quadratic in Standard Form #5
335. Graph a Quadratic in Standard Form #6
336. Graph a Quadratic in Standard Form #7
337. Graph a Quadratic in Standard Form – Quadratic Formula #1
338. Graph a Quadratic in Standard Form – Completing the Square #1
339. Graph a Quadratic in Standard Form – Completing the Square #2
340. Graph a Quadratic in Standard Form – Completing the Square #3
341. Graph a Quadratic in Standard Form – Completing the Square #4
342. Graphing a Quadratic in Vertex Form #1
343. Graphing a Quadratic in Vertex Form #2
344. Graphing a Quadratic in Vertex Form #3
345. Graphing a Quadratic in Vertex Form #4
346. Graphing a Quadratic in Vertex Form #5
347. Introduction to Discriminants #1
348. Introduction to Discriminants #2
349. Graph a Quadratic using the Discriminant #1
350. Graph a Quadratic using the Discriminant #2
351. Graph a Quadratic using the Discriminant #3
352. Graph a Quadratic using the Discriminant – Axis of Symmetry #1
353. Graph a Quadratic using the Discriminant – Axis of Symmetry #2
354. Write a Quadratic Equation in Factored Form from the Graph #1
355. Write a Quadratic Equation in Factored Form from the Graph #2
356. Write a Quadratic Equation from the Graph #1
357. Write a Quadratic Equation from the Graph #2
358. Write a Quadratic Equation from the Graph #3
359. Write a Quadratic Equation from the Graph #4
360. Write a Quadratic Equation from the Graph #5
361. Write a Quadratic Equation Given the Vertex and Another Point #1
362. Write a Quadratic Equation Given the Vertex and Another Point #2
363. Graph a Quadratic Inequality on the Number Line #1
364. Graph a Quadratic Inequality #1
365. Graph a Quadratic Inequality #2
366. Graph a Quadratic Inequality #3
367. Graph a Quadratic Inequality #4
368. Graph a Quadratic Inequality #5
369. Graph a Quadratic Inequality #6
370. Graph Two Quadratic Inequalities #1
371. Solving Rational Equations – LCD #1
372. Solving Rational Equations – Cross Product Property #1
373. Solving Rational Equations – Cross Product Property #2
374. Relative and Absolute Maxima and Minima from a Graph #1
375. Find the Mean #1
376. Find the Mode #1
377. Find the Median #1
378. Find the Median #2
379. Find the Range #1
380. Find the Range #2
381. Create a Frequency Table from a Set of Scores #1
382. Create a Frequency Table from a Set of Scores #2
383. Find the Mode from a Frequency Table #1
384. Find the Mean from a Frequency Table #1
385. Find the Mean from a Frequency Table #2
386. Find the Mean from a Frequency Table #3
387. Find the Median from a Frequency Table #1
388. Create a Histogram from a Set of Scores #1
389. Find the Mode from a Histogram #1
390. Find the Mean from a Histogram #1
391. Find the Median from a Histogram #1
392. Create a Frequency Table from a Frequency Polygon #1
393. Find the Mean from a Frequency Polygon #1
394. Find the Median from a Cumulative Frequency Table #1
395. Find the Median from a Cumulative Frequency Table #2
396. Find the Median from a Cumulative Frequency Table #3
397. Find the Median from a Cumulative Frequency Table #4
398. Find the Median from a Cumulative Frequency Histogram #1
399. Find the Median from a Cumulative Frequency Histogram #2
400. Create a Grouped Frequency Table from a Set of Scores #1
401. Create a Grouped Frequency Table from a Set of Scores #2
402. Create a Grouped Frequency Table from a Set of Scores #3
403. Complete a Grouped Frequency Table #1
404. Create a Histogram from a Grouped Frequency Table #1
405. Create a Histogram from a Grouped Frequency Table #2
406. Create a Polygon from a Grouped Frequency Table #1
407. Create a Cumulative Frequency Histogram from a Grouped Frequency Table #1
408. Interpret a Grouped Frequency Table #1
409. Find the Modal Class from a Grouped Frequency Table #1
410. Find the Mean from a Grouped Frequency Table #1
411. Find the Mean from a Grouped Frequency Table #2
412. Find the Median Class from a Grouped Frequency Table #1
413. Find the Median Class from a Grouped Frequency Table #2
414. Create a Dot Plot from a Set of Scores #1
415. Find the Mode from a Dot Plot #1
416. Find the Mode from a Dot Plot #2
417. Find the Range from a Dot Plot #1
418. Find the Median from a Dot Plot #1
419. Find the Median from a Dot Plot #2
420. Find the Mean from a Dot Plot #1
421. Find the Outlier from a Dot Plot #1
422. Find the Interquartile Range from a Set of Scores #1
423. Find the Interquartile Range from a Set of Scores #2
424. Find the Interquartile Range from a Dot Plot #1
425. Create a Box and Whisker Plot from a Set of Scores #1
426. Create a Box and Whisker Plot from a Set of Scores #2
427. Create a Box and Whisker Plot from a Set of Scores #3
428. Find the Range from a Box and Whisker Plot #1
429. Find the Interquartile Range from a Box and Whisker Plot #1
430. Find the Median from a Box and Whisker Plot #1
431. Create a Stem and Leaf Plot from a Set of Scores #1
432. Create a Stem and Leaf Plot from a Set of Scores #2
433. Create a Stem and Leaf Plot from a Set of Scores #3
434. Find the Mode from a Stem and Leaf Plot #1
435. Find the Range from a Stem and Leaf Plot #1
436. Find the Median from a Stem and Leaf Plot #1
437. Find the Mean from a Stem and Leaf Plot #1
438. Find the Interquartile Range from a Stem and Leaf Plot #1
439. Substitution Method #1
440. Substitution Method #2
441. Substitution Method #3
442. Substitution Method #4
443. Substitution Method #5
444. Substitution Method #6
445. Substitution Method #7
446. Substitution Method #8
447. Substitution Method #9
448. Substitution Method #10
449. Substitution Method #11
450. Substitution Method #12
451. Substitution Method #13
452. Substitution Method #14
453. Intro to Circle Distances – Finding a Position Relative to a Point #1
454. Great Circle Distances #1
455. Great Circle Distances #2
456. Great Circle Distances #3
457. Great Circle Distances #4
458. Great Circle Distances – On the Equator #1
459. Great Circle Distances – On the Equator #2
460. Great Circle Distances – On the Equator #3
461. Add Time from a Time and Date #1
462. Subtract Time from a Time and Date #1
463. Intro to Time Difference and Longitude #1
464. Intro to Time Difference and Longitude #2
465. Find the Time Difference using Longitude #1
466. Find the Time Difference using Longitude #2
467. Find the Time Difference using Longitude #3
468. Find the Time Difference using Longitude #4
469. Find the Time Difference using Longitude #5
470. Find the Time Difference using Longitude #6
471. Find the Time in Another City using Longitude #1
472. Find the Time in Another City using Longitude #2
473. Find the Time in Another City using Longitude #3
474. Find the Time in Another City using Longitude #4
475. Find the Time in Another City using Longitude #5
476. Find the Time in Another City using Longitude #6
477. Find the Time Difference using Time Zones #1
478. Find the Time Difference using Time Zones #2
479. Find the Time Difference using Time Zones #3
480. Find the Time Difference using Time Zones #4
481. Find the Time in Another City using Time Zones #1
482. Find the Time in Another City using Time Zones #2
483. Find the Time in Another City using Time Zones #3
484. Find the Time in Another City using Time Zones #4
485. Find the Time in Another City using Time Zones #5
486. Find the Time in Another City using Time Zones #6
487. Find the Arrival Time using Longitude: Word Problem #1
488. Find the Arrival Time using Longitude: Word Problem #2
489. Find the Arrival Time using Longitude: Word Problem #3
490. Find the Arrival Time using Longitude: Word Problem #4
491. Find the Flight Time using Longitude: Word Problem #1
492. Find the Departure Time using Longitude: Word Problem #2
493. Find the Arrival Time using Time Zones: Word Problem #1
494. Find the Arrival Time using Time Zones: Word Problem #2
495. Find the Arrival Time using IDL: Word Problem #1
496. Find the Arrival Time using IDL: Word Problem #2
497. Distance Between Two Points #1
498. Distance Between Two Points #2
499. Midpoint of a Line #1
500. Midpoint of a Line #2
501. Endpoint of a Line #1
502. Intro to Slopes #1
503. Slope of a Line #1
504. Slope of a Line #2
505. Slope of a Line using Formula and Rise-Run #1
506. Slope of a Line using Rise-Run #1
507. Slope of a Line using Rise-Run #2
508. Slope of a Line – Quadrilateral #1
509. Slope of a Line – Parallel Proof #1
510. Graph from Slope Intercept Form using Intercepts #1
511. Graph from Slope Intercept Form using Rise-Run #1
512. Graph from Slope Intercept Form using Rise-Run #2
513. Graph from Slope Intercept Form using Rise-Run #3
514. Write an Equation from a Graph #1
515. Write an Equation from a Graph #2
516. Determine Whether a Point Lies on a Line #1
517. Determine Whether a Point Lies on a Line #2
518. Intro to Linear Inequalities #1
519. Graph a Basic Linear Inequality #1
520. Graph a Basic Linear Inequality #2
521. Graph a Basic Linear Inequality #3
522. Graph a Linear Inequality #1
523. Graph a Linear Inequality #2
524. Graph a Linear Inequality #3
525. Graph Multiple Linear Inequalities #1
526. Graph Multiple Linear Inequalities #2
527. Convert Standard Form to Slope Intercept Form #1
528. Convert Slope Intercept Form to Standard Form #1
529. Graph a Linear Equation Given in Standard Form #1
530. Point Slope Form #1
531. Point Slope Form #2
532. Point Slope Form – Given Two Points #1
533. Point Slope Form – Given Two Points #2
534. Two Point Form #1
535. Identify Parallel Lines #1
536. Identify Parallel Lines #2
537. Identify Parallel Lines #3
538. Determine if a Line is Parallel Given a Point #1
539. Determine if a Line is Parallel Given a Point #2
540. Find a Missing Value in a Linear Equation #1
541. Identify Perpendicular Lines #1
542. Identify Perpendicular Lines Given a Point #1
543. Identify Perpendicular Lines Given a Point #2
544. Identify Perpendicular Lines Given in Standard Form #1
545. Identify Perpendicular Lines Given Points #1
546. Solve a Nonlinear System of Equation 01
547. Solve a Nonlinear System of Equation 02
548. Solve a Nonlinear System of Equation 03
549. Solve a Nonlinear System of Equation 04
550. Solve a Nonlinear System of Equation 05
551. Solve a System of Equations by Graphing 01
552. Solve a System of Equations by Graphing 02
553. Solve a System of Equations by Graphing 03
554. Solve a System of Equations by Graphing 04
555. Solve a System of Equations by Graphing 05
556. Solve a System of Equations by Graphing 06
557. Solve a System of Equations by Graphing 07
558. 3 Variable System of Equation – Substitution Method #1
559. 3 Variable System of Equation – Substitution Method #2
560. 3 Variable System of Equation – Elimination Method #1
561. 3 Variable System of Equation – Elimination Method #2
562. 3 Variable System of Equation – Elimination Method #3
563. 3 Variable System of Equation – Elimination Method #4
564. 3 Variable System of Equation – Elimination Method #5
565. Determine Whether a Point Lies on a Line #1
566. Determine Whether a Point Lies on a Line #2
567. Decrease an Amount by a Percentage: Word Problem – Discount #1
568. Decrease an Amount by a Percentage: Word Problem – Discount #2
569. Decrease an Amount by a Percentage: Word Problem – Discount #3
570. Decrease an Amount by a Percentage: Word Problem – Discount #4
571. Decrease an Amount by a Percentage: Word Problem – Discount #5
572. Decrease an Amount by a Percentage: Word Problem – Discount #6
573. Decrease an Amount by a Percentage: Word Problem – Discount #7
574. Decrease an Amount by a Percentage: Word Problem – Depreciation #1
575. Increase an Amount by a Percentage: Word Problem – Sales Tax #1
576. Increase an Amount by a Percentage: Word Problem – Sales Tax #2
577. Increase an Amount by a Percentage: Word Problem – Price Rise #1
578. Find Percent of Change Between Two Amounts – Increase #1
579. Find Percent of Change Between Two Amounts – Increase #2
580. Find Percent of Change Between Two Amounts – Decrease #1
581. Find Percent of Change Between Two Amounts – Decrease #2
582. Find Percent of Change Between Two Amounts – Price Rise #1
583. Find Percent of Change Between Two Amounts – Profit #1
584. Find Percent of Change Between Two Amounts – Profit #2
585. Find Percent of Change Between Two Amounts – Profit #3
586. Find Percent of Change Between Two Amounts – Weight #1
587. Find Percent of Change Between Two Amounts – Measurement #1
588. Percent of an Amount: Word Problem – Pie Chart #1
589. Percent of an Amount: Word Problem #1
590. Percent of an Amount: Word Problem #2
591. Percent of an Amount: Word Problem #3
592. Percent of an Amount: Word Problem #4
593. Percent of an Amount: Word Problem #5
594. Percent of an Amount: Word Problem – Commission #1
595. Percent of an Amount: Word Problem – Commission #2
596. Percent of Multiple Amounts: Word Problem #1
597. Percent of Multiple Amounts: Word Problem #2
598. Percent of an Amount: Word Problem – Complementary #1
599. Percent of an Amount: Word Problem – Complementary #2
600. Percent of an Amount: Word Problem – Complementary #3
601. Percent of an Amount: Word Problem – Complementary #4
602. Decrease an Amount by a Percentage: Word Problem – Discount #1
603. Decrease an Amount by a Percentage: Word Problem – Discount #2
604. Decrease an Amount by a Percentage: Word Problem – Discount #3
605. Decrease an Amount by a Percentage: Word Problem – Discount #4
606. Decrease an Amount by a Percentage: Word Problem – Discount #5
607. Decrease an Amount by a Percentage: Word Problem – Discount #6
608. Decrease an Amount by a Percentage: Word Problem – Discount #7
609. Decrease an Amount by a Percentage: Word Problem – Depreciation #1
610. Increase an Amount by a Percentage: Word Problem – Sales Tax #1
611. Increase an Amount by a Percentage: Word Problem – Sales Tax #2
612. Increase an Amount by a Percentage: Word Problem – Price Rise #1
613. Find Percent of Change Between Two Amounts – Increase #1
614. Find Percent of Change Between Two Amounts – Increase #2
615. Find Percent of Change Between Two Amounts – Decrease #1
616. Find Percent of Change Between Two Amounts – Decrease #2
617. Find Percent of Change Between Two Amounts – Price Rise #1
618. Find Percent of Change Between Two Amounts – Profit #1
619. Find Percent of Change Between Two Amounts – Profit #2
620. Find Percent of Change Between Two Amounts – Profit #3
621. Find Percent of Change Between Two Amounts – Weight #1
622. Find Percent of Change Between Two Amounts – Measurement #1
623. Percent of an Amount: Word Problem – Pie Chart #1
624. Percent of an Amount: Word Problem #1
625. Percent of an Amount: Word Problem #2
626. Percent of an Amount: Word Problem #3
627. Percent of an Amount: Word Problem #4
628. Percent of an Amount: Word Problem #5
629. Percent of an Amount: Word Problem – Commission #1
630. Percent of an Amount: Word Problem – Commission #2
631. Percent of Multiple Amounts: Word Problem #1
632. Percent of Multiple Amounts: Word Problem #2
633. Percent of an Amount: Word Problem – Complementary #1
634. Percent of an Amount: Word Problem – Complementary #2
635. Percent of an Amount: Word Problem – Complementary #3
636. Percent of an Amount: Word Problem – Complementary #4
637. Solve a System of Equations by Graphing #1
638. Solve a System of Equations by Graphing #2
639. Solve a System of Equations by Graphing #3
640. Solve a System of Equations by Graphing #4
641. Solve a System of Equations by Graphing #5
642. Solve a System of Equations by Graphing #6
643. Solve a System of Equations by Graphing #7
644. Substitution Method #1
645. Substitution Method #2
646. Substitution Method #3
647. Substitution Method #4
648. Substitution Method #5
649. Substitution Method #6
650. Substitution Method #7
651. Substitution Method #8
652. Substitution Method #9
653. Substitution Method #10
654. Substitution Method #11
655. Substitution Method #12
656. Substitution Method #13
657. Substitution Method #14
658. Elimination Method #1
659. Elimination Method #2
660. Elimination Method #3
661. Elimination Method #4
662. Elimination Method #5
663. Elimination Method #6
664. Elimination Method #7
665. Elimination Method #8
666. Elimination Method #9
667. Elimination Method #10
668. Elimination Method #11
669. Elimination Method #12
670. Elimination Method #13
671. Elimination Method #14
672. Elimination Method – Challenge #1
673. Elimination Method – Challenge #2
674. Solve a Nonlinear System of Equation #1
675. Solve a Nonlinear System of Equation #2
676. Solve a Nonlinear System of Equation #3
677. Solve a Nonlinear System of Equation #4
678. Solve a Nonlinear System of Equation #5
679. Elimination Method – Word Problem #1
680. Elimination Method – Word Problem #2
681. Elimination Method – Word Problem #3
682. Elimination Method – Word Problem #4
683. Elimination Method – Word Problem (Geometry) #1
684. Elimination Method – Word Problem (Geometry) #2
685. Elimination Method – Word Problem (Geometry) #3
686. Elimination Method – Word Problem (Geometry) #4
687. Substitution Method – Word Problem #1
688. Substitution Method – Word Problem #2
689. 3 Variable System of Equation – Substitution Method #1
690. 3 Variable System of Equation – Substitution Method #2
691. 3 Variable System of Equation – Elimination Method #1
692. 3 Variable System of Equation – Elimination Method #2
693. 3 Variable System of Equation – Elimination Method #3
694. 3 Variable System of Equation – Elimination Method #4
695. 3 Variable System of Equation – Elimination Method #5
696. Solve a System of Equations by Graphing #1
697. Solve a System of Equations by Graphing #2
698. Solve a System of Equations by Graphing #3
699. Solve a System of Equations by Graphing #4
700. Solve a System of Equations by Graphing #5
701. Solve a System of Equations by Graphing #6
702. Solve a System of Equations by Graphing #7
703. Substitution Method #1
704. Substitution Method #2
705. Substitution Method #3
706. Substitution Method #4
707. Substitution Method #5
708. Substitution Method #6
709. Substitution Method #7
710. Substitution Method #8
711. Substitution Method #9
712. Substitution Method #10
713. Substitution Method #11
714. Substitution Method #12
715. Substitution Method #13
716. Substitution Method #14
717. Elimination Method #1
718. Elimination Method #2
719. Elimination Method #3
720. Elimination Method #4
721. Elimination Method #5
722. Elimination Method #6
723. Elimination Method #7
724. Elimination Method #8
725. Elimination Method #9
726. Elimination Method #10
727. Elimination Method #11
728. Elimination Method #12
729. Elimination Method #13
730. Elimination Method #14
731. Elimination Method – Challenge #1
732. Elimination Method – Challenge #2
733. Solve a Nonlinear System of Equation #1
734. Solve a Nonlinear System of Equation #2
735. Solve a Nonlinear System of Equation #3
736. Solve a Nonlinear System of Equation #4
737. Solve a Nonlinear System of Equation #5
738. Elimination Method – Word Problem #1
739. Elimination Method – Word Problem #2
740. Elimination Method – Word Problem #3
741. Elimination Method – Word Problem #4
742. Elimination Method – Word Problem (Geometry) #1
743. Elimination Method – Word Problem (Geometry) #2
744. Elimination Method – Word Problem (Geometry) #3
745. Elimination Method – Word Problem (Geometry) #4
746. Substitution Method – Word Problem #1
747. Substitution Method – Word Problem #2
748. 3 Variable System of Equation – Substitution Method #1
749. 3 Variable System of Equation – Substitution Method #2
750. 3 Variable System of Equation – Elimination Method #1
751. 3 Variable System of Equation – Elimination Method #2
752. 3 Variable System of Equation – Elimination Method #3
753. 3 Variable System of Equation – Elimination Method #4
754. 3 Variable System of Equation – Elimination Method #5
755. Midpoint of a Line #1
756. Midpoint of a Line #2
757. Endpoint of a Line #1
758. Arithmetic Sequence – Substituting for Nth Term #1
759. Arithmetic Sequence – Find Nth Term #1
760. Arithmetic Sequence – Find Nth Term #2
761. Arithmetic Sequence – Find Nth Term #3
762. Arithmetic Sequence – Find Nth Term #4
763. Arithmetic Sequence – Find the Sequence Given Two Terms #1
764. Geometric Sequence – Find Term Position #1
765. Geometric Sequence – Find Term Position #2
766. Geometric Sequence – Find Nth Term #1
767. Solve a Quadratic by Factoring #1
768. Solve a Quadratic by Factoring #2
769. Solve a Quadratic by Factoring #3
770. Solve a Quadratic by Factoring #4
771. Solve a Quadratic using the Quadratic Formula #1
772. Solve a Quadratic using the Quadratic Formula #2
773. Solve a Quadratic using the Quadratic Formula #3
774. Solve a Quadratic using the Quadratic Formula #4
775. Solve a Quadratic using the Quadratic Formula #5
776. Solve a Quadratic using the Quadratic Formula – Grouping #1
777. Solve a Quadratic by Completing the Square #1
778. Solve a Quadratic by Completing the Square #2
779. Solve a Quadratic by Completing the Square #3
780. Solve a Quadratic by Completing the Square #4
781. Solve a Quadratic by Completing the Square #5
782. Solve a Quadratic by Completing the Square #6
783. Solve a Quadratic by Completing the Square #7
784. Solve a Quadratic by Completing the Square #8
785. Solve a Quadratic by Completing the Square #9
786. Solve a Quadratic by Completing the Square – Find the Vertex #1
787. Concavity of a Parabola #1
788. Concavity of a Parabola #2
789. Parabolas at the Origin #1
790. Parabolas at the Origin #2
791. Graph Parabolas in Basic Form #1
792. Graph Parabolas in Basic Form #2
793. Write an Equation for a Parabola in Basic Form #1
794. Write an Equation for a Parabola in Basic Form #2
795. Graph a Quadratic in Standard Form #1
796. Graph a Quadratic in Standard Form #2
797. Graph a Quadratic in Standard Form #3
798. Graph a Quadratic in Standard Form #4
799. Graph a Quadratic in Standard Form #5
800. Graph a Quadratic in Standard Form #6
801. Graph a Quadratic in Standard Form #7
802. Graph a Quadratic in Standard Form – Quadratic Formula #1
803. Graph a Quadratic in Standard Form – Completing the Square #1
804. Graph a Quadratic in Standard Form – Completing the Square #2
805. Graph a Quadratic in Standard Form – Completing the Square #3
806. Graph a Quadratic in Standard Form – Completing the Square #4
807. Graphing a Quadratic in Vertex Form #1
808. Graphing a Quadratic in Vertex Form #2
809. Graphing a Quadratic in Vertex Form #3
810. Graphing a Quadratic in Vertex Form #4
811. Graphing a Quadratic in Vertex Form #5
812. Write a Quadratic Equation in Factored Form from the Graph #1
813. Write a Quadratic Equation in Factored Form from the Graph #2
814. Write a Quadratic Equation from the Graph #1
815. Write a Quadratic Equation from the Graph #2
816. Write a Quadratic Equation from the Graph #3
817. Write a Quadratic Equation from the Graph #4
818. Write a Quadratic Equation from the Graph #5
819. Write a Quadratic Equation Given the Vertex and Another Point #1
820. Write a Quadratic Equation Given the Vertex and Another Point #2
821. Graph a Quadratic Inequality on the Number Line #1
822. Graph a Quadratic Inequality #1
823. Graph a Quadratic Inequality #2
824. Graph a Quadratic Inequality #3
825. Graph a Quadratic Inequality #4
826. Graph a Quadratic Inequality #5
827. Graph a Quadratic Inequality #6
828. Graph Two Quadratic Inequalities #1
829. Introduction to Discriminants #1
830. Introduction to Discriminants #2
831. Graph a Quadratic using the Discriminant #1
832. Graph a Quadratic using the Discriminant #2
833. Graph a Quadratic using the Discriminant #3
834. Graph a Quadratic using the Discriminant – Axis of Symmetry #1
835. Graph a Quadratic using the Discriminant – Axis of Symmetry #2
836. Solve a Quadratic by Factoring #1
837. Solve a Quadratic by Factoring #2
838. Solve a Quadratic by Factoring #3
839. Solve a Quadratic by Factoring #4
840. Solve a Quadratic using the Quadratic Formula #1
841. Solve a Quadratic using the Quadratic Formula #2
842. Solve a Quadratic using the Quadratic Formula #3
843. Solve a Quadratic using the Quadratic Formula #4
844. Solve a Quadratic using the Quadratic Formula #5
845. Solve a Quadratic using the Quadratic Formula – Grouping #1
846. Solve a Quadratic by Completing the Square #1
847. Solve a Quadratic by Completing the Square #2
848. Solve a Quadratic by Completing the Square #3
849. Solve a Quadratic by Completing the Square #4
850. Solve a Quadratic by Completing the Square #5
851. Solve a Quadratic by Completing the Square #6
852. Solve a Quadratic by Completing the Square #7
853. Solve a Quadratic by Completing the Square #8
854. Solve a Quadratic by Completing the Square #9
855. Solve a Quadratic by Completing the Square – Find the Vertex #1
856. Concavity of a Parabola #1
857. Concavity of a Parabola #2
858. Parabolas at the Origin #1
859. Parabolas at the Origin #2
860. Graph Parabolas in Basic Form #1
861. Graph Parabolas in Basic Form #2
862. Write an Equation for a Parabola in Basic Form #1
863. Write an Equation for a Parabola in Basic Form #2
864. Graph a Quadratic in Standard Form #1
865. Graph a Quadratic in Standard Form #2
866. Graph a Quadratic in Standard Form #3
867. Graph a Quadratic in Standard Form #4
868. Graph a Quadratic in Standard Form #5
869. Graph a Quadratic in Standard Form #6
870. Graph a Quadratic in Standard Form #7
871. Graph a Quadratic in Standard Form – Quadratic Formula #1
872. Graph a Quadratic in Standard Form – Completing the Square #1
873. Graph a Quadratic in Standard Form – Completing the Square #2
874. Graph a Quadratic in Standard Form – Completing the Square #3
875. Graph a Quadratic in Standard Form – Completing the Square #4
876. Graphing a Quadratic in Vertex Form #1
877. Graphing a Quadratic in Vertex Form #2
878. Graphing a Quadratic in Vertex Form #3
879. Graphing a Quadratic in Vertex Form #4
880. Graphing a Quadratic in Vertex Form #5
881. Write a Quadratic Equation in Factored Form from the Graph #1
882. Write a Quadratic Equation in Factored Form from the Graph #2
883. Write a Quadratic Equation from the Graph #1
884. Write a Quadratic Equation from the Graph #2
885. Write a Quadratic Equation from the Graph #3
886. Write a Quadratic Equation from the Graph #4
887. Write a Quadratic Equation from the Graph #5
888. Write a Quadratic Equation Given the Vertex and Another Point #1
889. Write a Quadratic Equation Given the Vertex and Another Point #2
890. Graph a Quadratic Inequality on the Number Line #1
891. Graph a Quadratic Inequality #1
892. Graph a Quadratic Inequality #2
893. Graph a Quadratic Inequality #3
894. Graph a Quadratic Inequality #4
895. Graph a Quadratic Inequality #5
896. Graph a Quadratic Inequality #6
897. Graph Two Quadratic Inequalities #1
898. Solving Reducible Equations #1
899. Solving Reducible Equations #2
900. Solving Reducible Equations #3
901. Solving Reducible Equations #4
902. Solving Reducible Equations #5
903. Greatest Common Factor #4
904. Greatest Common Factor #5
905. Greatest Common Factor #6
906. Greatest Common Factor #7
907. Greatest Common Factor #8
908. Greatest Common Factor #9
909. Factor an Expression using GCF #1
910. Factor an Expression using GCF #2
911. Factor an Expression using GCF #3
912. Factor an Expression using GCF #4
913. Factor an Expression using GCF #5
914. Factor an Expression using GCF #6
915. Factor an Expression using GCF #7
916. Factor an Expression #1
917. Factor an Expression #2
918. Factor an Expression #3
919. Factor an Expression #4
920. Factor a Quadratic with Leading Coefficient 1 #1
921. Factor a Quadratic with Leading Coefficient 1 #2
922. Factor a Quadratic with Leading Coefficient 1 #3
923. Factor a Quadratic with Leading Coefficient 1 #4
924. Factor a Quadratic with Leading Coefficient 1 #5
925. Factor a Quadratic with Leading Coefficient 1 #6
926. Factor a Quadratic with Leading Coefficient 1 #7
927. Factor a Quadratic with Leading Coefficient 1 #8
928. Factor a Quadratic with Leading Coefficient 1 #9
929. Factor a Quadratic with Leading Coefficient 1 #10
930. Factor a Quadratic with Leading Coefficient 1 #11
931. Factor a Quadratic with Leading Coefficient 1 #12
932. Factor a Quadratic with Leading Coefficient 1 #13
933. Factor a Quadratic with Leading Coefficient 1 #14
934. Factor a Quadratic (Complex) #1
935. Factor a Quadratic (Complex) #2
936. Factor a Quadratic (Complex) #3
937. Factor a Quadratic (Complex) #4
938. Factor a Quadratic (Complex) #5
939. Factor a Quadratic with Leading Coefficient more than 1 #1
940. Factor a Quadratic with Leading Coefficient more than 1 #2
941. Factor a Quadratic with Leading Coefficient more than 1 #3
942. Factor a Quadratic with Leading Coefficient more than 1 #4
943. Factor a Quadratic with Leading Coefficient more than 1 #5
944. Factor a Quadratic with Leading Coefficient more than 1 #6
945. Factor a Quadratic with Leading Coefficient more than 1 #7
946. Factor a Quadratic with Leading Coefficient more than 1 #8
947. Factor a Quadratic with Leading Coefficient more than 1 #9
948. Factor a Quadratic with Leading Coefficient more than 1 #10
949. Factor a Quadratic with Leading Coefficient more than 1 #11
950. Factor a Quadratic with Leading Coefficient more than 1 #12

Great Circle Distances – On the Equator #3

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Video Lessons

1. Multiply Binomials #1

2. Multiply Binomials #2

3. Multiply Binomials #3

4. Multiply Binomials #4

5. Multiply Binomials #5

6. Multiply Binomials #6

7. FOIL Method #1

8. FOIL Method #2

9. FOIL Method #3

10. FOIL Method #4

11. FOIL Method #5

12. FOIL Method #6

13. FOIL Method – Same First Variable #1

14. FOIL Method – Same First Variable #2

15. FOIL Method – Same First Variable #3

16. FOIL Method – Same First Variable #4

17. FOIL Method – Same First Variable #5

18. FOIL Method – Same First Variable #6

19. FOIL Method – Same First Variable #7

20. FOIL Method – Same First Variable #8

21. FOIL Method – Same First Variable #9

22. FOIL Method – 3 Terms #1

23. FOIL Method – 3 Terms #2

24. FOIL Method – 3 Terms #3

25. FOIL Method – 3 Terms #4

26. Expand Perfect Squares #1

27. Expand Perfect Squares #2

28. Expand Perfect Squares #3

29. Expand Perfect Squares #4

30. Expand Perfect Squares #5

31. Expand Perfect Squares #6

32. Expand Perfect Squares #7

33. Difference of Two Squares #1

34. Difference of Two Squares #2

35. Difference of Two Squares #3

36. Difference of Two Squares #4

37. Difference of Two Squares #5

38. Difference of Two Squares #6

39. Difference of Two Squares #7

40. Difference of Two Squares – Longer Expression #1

41. Difference of Two Squares – Longer Expression #2

42. Difference of Two Squares – Longer Expression #3

43. Difference of Two Squares – Longer Expression #4

44. Difference of Two Squares – Longer Expression #5

45. Difference of Two Squares – Longer Expression #6

46. Multiply Binomials 1

47. Multiply Binomials #2

48. Multiply Binomials #3

49. Multiply Binomials #4

50. Multiply Binomials #5

51. Multiply Binomials #6

52. FOIL Method #1

53. FOIL Method #2

54. FOIL Method #3

55. FOIL Method #4

56. FOIL Method #5

57. FOIL Method #6

58. FOIL Method – Same First Variable #1

59. FOIL Method – Same First Variable #2

60. FOIL Method – Same First Variable #3

61. FOIL Method – Same First Variable #4

62. FOIL Method – Same First Variable #5

63. FOIL Method – Same First Variable #6

64. FOIL Method – Same First Variable #7

65. FOIL Method – Same First Variable #8

66. FOIL Method – Same First Variable #9

67. FOIL Method – 3 Terms #1

68. FOIL Method – 3 Terms #2

69. FOIL Method – 3 Terms #3

70. FOIL Method – 3 Terms #4

71. Expand Perfect Squares #1

72. Expand Perfect Squares #2

73. Expand Perfect Squares #3

74. Expand Perfect Squares #4

75. Expand Perfect Squares #5

76. Expand Perfect Squares #6

77. Expand Perfect Squares #7