Divide.
A. 5
B. 500
C. 50
D. 0.5
Answer: B
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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 5 cm × 2 cm. Find the rate at which the area of the image is changing (dA/df) if the length of the image is changing at 0.6 cm/s and the width of the image is changing at 0.1 cm/s.
A. 1.7 cm2/sec B. 6.4 cm2/sec C. 3.2 cm2/sec D. 3.4 cm2/sec
Find the zeros of the polynomial function and state the multiplicity of each.f(x) = 5x(x + 6)(x2 - 1)3
A. 0 (multiplicity 1), -6 (multiplicity 1), ±1 (multiplicity 1) B. 0 (multiplicity 1), -6 (multiplicity 1), - 1 (multiplicity 3) C. 0 (multiplicity 1), -6 (multiplicity 1), ±1 (multiplicity 3) D. 0 (multiplicity 1), 6 (multiplicity 1), ±1 (multiplicity 3)
Solve the problem.A rock is propelled upward from the top of a building 170 feet tall at an initial velocity of 168 feet per second. The function that describes the height of the rocket in terms of time t is 
Determine the maximum height that the rock reaches.
A. 579 ft B. 592 ft C. 611 ft D. 630 ft
Find the indicated derivative.Find fx f(x,y,z) = 5x4y4 + 8x10z6 + 10y4
A. 20x3 + 80x9 B. 20x3y4 + 80x9z6 C. 80x3y3 + 480x9z5 D. 20x4y3 + 48x10z5