Evaluate the integral. 
A. ex[x2 - 6x - 6] + C
B. ex[x2 - 4x + 4] + C
C. ex[x2 - 6x + 6] + C
D. 
x3ex - 2x2ex + C
Answer: C
Mathematics
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Find the surface area of the geometric solid. If needed, use 3.14 as an approximation for ? and round the answer to the nearest tenth.Rectangular prism: l = 7 m, w = 4 m, h = 2 m
A. 56 m2 B. 112 m2 C. 50 m2 D. 100 m2
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Sketch D and g(D) from the description of D and change of variables 
x = 3u, y = 
v where D is the rectangle 0 ? u ? 2, 1 ? v ? 4 
?
A.
 ? |  |
B.
 ? |  |
C.
 ? |  |
D.
 ? |  |
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Solve the equation.20x = 54 Round to two decimal places.
A. 1.33 B. 0.75 C. 0.43 D. 1.99
Mathematics
For the given functions f and g , find the indicated composition.f(x) = -4x + 9,g(x) = 5x + 3(g?f)(x)
A. 20x + 48 B. -20x + 21 C. -20x - 42 D. -20x + 48
Mathematics