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Review5

# 6094 4 ln7 5 lnx 17x3 6 ln y2 7 ln 13 a5xe 3x3x

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Unformatted text preview: f a person x years old is modeled by the function: A(x) = 110(- 2 + ln x) for x ≥10 x At what age is a personʹs aerobic rating largest? Graph 32) y = 2xe- x fn is increasing _________________ fn is decreasing ________________ fn has a relative max at _________________ fn has a rel min at ______________________ fn is concave up _______________________ fn is concave down ___________________ fn has an inflection point at _______________ 3 Answer Key Testname: M119‐REVIEW_CH‐4‐5 1) a) 1/2 b) 9 1 2) a) ln = - 3 64 3) a) x = e1.6094 4) ln(7) 5) ln x 17x(3) 6) ln y2 7) ln 13) a) 5xe 3x(3x + 2) ex(3x2 - 6x + 7) 14) a) (3x2 + 7)2 16) a) 2x x2 + 7 x ex ln x - ex x ln2 x 17) a) 18) d) 19/6 b) x=ln(2/5) b) e3.6636 = 39 w(w + 5)3 (w - 5)6 8) ln (y - 12)2/3(y + y) 9) a) - 1 , - 4 10) a) ln .09/4 11) a)24,154,952.75 12) a) 8xex2 15) a) c) 8/25 e8x (1 + 8x ln x) x b) - 3, 1/2 b) 25 ln 4 b) 19/6 2 + 1 b) 6xe3x b) (x2 + 1) ex b) 15x2 ex3 ex3 - 1 b) 4 1 - 5ln x x6 b) 4e4x e4x - 4 b) yʹ= x 1 - 2 + 1 2x + 3 x...
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