Solve the problem.Find the total surface area of a 5 ft by 4 ft by 3 ft box.
A. 104 ft2
B. 94 ft2
C. 47 ft2
D. 82 ft2
Answer: B
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Sketch D and g(D) from the description of D and change of variables 
x = u + v, y = 2u - v where D is the rectangle 0 ? u ? 1, -1 ? v ? 1
?
A.
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B.
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C.
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D.
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Solve the problem. Round your answer, if appropriate.As the zoom lens in a camera moves in and out, the size of the rectangular image changes. Assume that the current image is 6 cm × 5 cm. Find the rate at which the area of the image is changing (dA/df) if the length of the image is changing at 0.8 cm/s and the width of the image is changing at 0.1 cm/s.
A. 10.6 cm2/sec B. 9.2 cm2/sec C. 5.3 cm2/sec D. 4.6 cm2/sec
Evaluate the composition of functions.Let f(x) = x2 + 2 and g(x) = 3x + 6. Find (g ? f)(5).
A. 87 B. 443 C. 75 D. 33
Find the indicated matrix.Let A = 
and B = 
. Find 2A + B.
A. 
B. 
C. 
D. 