Answers
| 1. | (13.36,68.71) |
| 2. | (18.47, –23.64) |
| 3. | (–66, –17.9) |
| 4. | (–9.85,1.74) |
| 5. | (–50.53, –131.63) |
| 6. | length 12.37 at 14° south of west or 194° |
| 7. | length 7.28 at 74° or 16° east of north |
| 8. | length 24.7 at 21.4° south of east or 338.6° |
| 9. | length 239.6 at 29.8° north of west or 150.2° |
| 10. | length 3.709 at 31.3° east of south or 301.3° |
| 11. | 150 · cos(20°) ≈ 141 lbs. |
| 12. | 80 · cos(5°) ≈ 79.7 Ibs. |
| 13. | 200 · cos(60°) ≈ 100 lbs. |
| 14. | 180 · cos(37°) ≈ 144 lbs. |
| 15. | 130 · cos(8.6°) ≈ 128.5 lbs. |
| 16. | 100 · cos(75°) ≈ 25.9 Ibs. |
| 17. | 200 · cos(72°) ≈ 61.8 Ibs. |
| 18. | 40 · cos(48°) ≈ 26.8 Ibs. |
| 19. | 1,000 · cos(85°) ≈ 87 lbs. |
| 20. | 100 · cos(3°) ≈ 99.9 lbs. |
| 21. | 68.6 meters from the starting point, heading about 27° west of north |
| 22. | about 35.9 miles |
| 23. | She is about 10° south of west from where she started, so she should head 10° north of east to go back. |
| 24. | The car is about 40 miles from where it started, in the direction that is 8.5° north of east. |
| 25. | It is being pulled with about 293 pounds of force in a direction about 10° from the person pulling with 180 pounds of force. |
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