Given f(x) and g(x), find the composition.f(x) = -5x + 7; g(x) = 4x + 4Find (g ? f)(x).
A. (g ? f)(x) = -20x + 27
B. (g ? f)(x) = -20x + 32
C. (g ? f)(x) = -20x - 24
D. (g ? f)(x) = 20x + 32
Answer: B
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Evaluate the line integral of f(x,y) along the curve C.f(x, y) = x2 + y2, C: y = 3x + 2, 0 ? x ? 3
A. 156
B. 52
C. 336
D. 156
Let U = {all soda pops}, A = {all diet soda pops}, B = {all cola soda pops}, 
and 
Describe the set in words.A ? B
A. All diet or all cola soda pops B. All soda pops C. All diet and all cola soda pops D. All diet cola soda pops
Perform the indicated operations. Leave the result in polar form.[2(cos 90° + j sin 90°)][5(cos 200° + j sin 200°)]
A. 10(cos 18,000° + j sin 18,000°) B. 7(cos 290° + j sin 290°) C. 7(cos 18,000° + j sin 18,000°) D. 10(cos 290° + j sin 290°)
60 ? 30 ? 100
A. 63,000 B. 183,000 C. 177,000 D. 180,000