7. 8. Unit 4 Section 4.1 1. 2. 3. 0.776 4. 6.494 5. yes 6. A. This answer is for the question that is 12:30 PM instead of AM. B. 90.14 apart C. (West 37.5 miles, North 25 miles) 7. (4, 3) 8. (-4, 2.5) 9. (1988, 347) In 1988, the average daily jail population was 347 thousand people. 10. (1988, 2617.5) In 1988, the federal deficit was 2617.5 billion dollars. 11. (x 8)2 + (y + 2)2 = 149 12. (x + 2)2 + (y + 2)2 = 34 – Section 4.2 1. x12 7. 2c11 2. x-2y11 8. u4v 3. 56 9. w18 4. m3n3 10. x20 5. d-2 11. 27y3 6. h-10 12. -8x18y6 13. x2y-9 19. y 14. 125x-2 20. 15. 21. 16. x4y-6 22. 17. 72d-5 18. 64x6y9 Section 4.3 1A. 2 B. 1/5 11A. B. 4 2A. 1 B. 1/9 12A. x6y-10/3 B. 55/4x-14/3 3A. 2 B. not real 13A. x6y-2 B. 125c3d-6/5 4A. 1/10 B. 81 14A. 8x2y9 B. ½ x-1/6y-4/9 5A. h1/3 B. p1/2 15A. B. ½ x-5/2y1/2
7. 8. Unit 4 Section 4.1 1. 2. 3. 0.776 4. 6.494 5. yes 6. A. This answer is for the question that is 12:30 PM instead of AM. B. 90.14 apart C. (West 37.5 miles, North 25 miles) 7. (4, 3) 8. (-4, 2.5) 9. (1988, 347) In 1988, the average daily jail population was 347 thousand people. 10. (1988, 2617.5) In 1988, the federal deficit was 2617.5 billion dollars. 11. (x – 8)2 + (y + 2)2 = 149 12. (x + 2)2 + (y + 2)2 = 34 Section 4.2 1. x12 2. x-2y11 3. 56 4. m3n3 5. d-2 6. h-10 13. x2y-9 14. 125x-2 15. 16. x4y-6 17. 72d-5 18. 64x6y9 7. 2c11 8. u4v 9. w18 10. x20 11. 27y3 12. -8x18y6 19. y 20. 21. 22. Section 4.3 1A. 2 B. 1/5 2A. 1 B. 1/9 3A. 2 B. not real 4A. 1/10 B. 81 5A. h1/3 B. p1/2 11A. B. 4 12A. x6y-10/3 B. 55/4x-14/3 13A. x6y-2 B. 125c3d-6/5 14A. 8x2y9 B. ½ x-1/6y-4/9 15A. B. ½ x-5/2y1/2
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