153Ch2evenanswers

153Ch2evenanswers - 66. 32 feet of fencing 70. in range...

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Section 2.1 6. y = 11 3 12. x = 51 5 22. x = 3 17 30. All Reals, x 2 5 40. All Reals, x ± 5 2 44. No Solution 70. r = A P Pt 74. h = S 2 lw 2( w + l ) Section 2.2 4. $57.42 8. 13 hr. 10. Sell $200 million in bonds and borrow $600 million. 12. engineer = 8.5 hours; assistant = 3.5 hours 14. Use 40 3 ml of 1% solution and 5 3 ml of 10% solution 16. Use 40 ml of elixir and 60 ml of syrup. 20. After 1:21 PM 26. h = 13 ft. 32. 40 13 hr. Section 2.3 2. x = -2, 7 4 14. x = 1 3 , (x -2) 16. a) No b) Yes 20. x = ± 7 4 26. a) d = 169 4 b) d = 9 c) d = ± 10 d) d = ± 9 28. x = 4 ± 5 36. x =− 5 6 ± 1 6 13 52. d = gmM F , since d > 0 54. t = v o + v o 2 + 2 gs g 58. 8 in. by 16 in. 60. a. 206.25 ft. b. v = 40 mi/hr 64. 1.5 in. for sides and top; 3 in. for bottom
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Unformatted text preview: 66. 32 feet of fencing 70. in range until 9:24 a.m. Sections 2.4 4. -5 + 5 i 18(a) . -1 22. 3 2 5 2 i 42. -4 i Section 2.5 4. x = 1 5 , or x = -1 24. x = 9 (x = 2 is extraneous) 38. y = 1 6 30 6 13 52. a) x = -243 b) x = 125 c) No real solutions d) x = 9 e) No real solutions 58. t = TA 2 k 2 66. r = 3 in. Section 2.6 2. a) 11 > 2 b) 9 > 0 c) 2 3 > 5 6 d) 2 3 < 5 6 4. (- , 5] 8. [ ) 5 , 3 14. 0 x < 4 22. (- , 1] 54. (- , 2.6) (3.4, ) 78. 20 9 x 4 Section 2.7 2. 2 3 , 7 4 10. 1, 4 3 44. 8 < t < 12 5 ] ) [ 5 -3...
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153Ch2evenanswers - 66. 32 feet of fencing 70. in range...

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