A man hikes up a mountain to the peak, where he rests for a few minutes and then continues down the other side of the mountain. We measure his location as distance up from the base of the mountain. What can be said about the man's velocity when he is hiking up the mountain?
A. Velocity is positive.
B. Velocity is negative.
C. Velocity is 0.
D. None of the above.
Answer: A
Mathematics
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Find a formula for the function graphed.
A. 
B. 
C. 
D. 
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A man pulls a sled horizontally by exerting 32lb on the rope that's tied to its front end. If the rope makes an angle of 45° with horizontal, find the work done in moving the sled 55 ft.
What will be an ideal response?
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Factor by grouping. Assume any variable exponents represent whole numbers.ab - 9c - ac + 9b
A. (b + c)(a + 9) B. (b - c)(a - 9) C. (b + c)(a - 9) D. (b - c)(a + 9)
Mathematics
Determine the maximum number of turning points of f.f(x) = (x + 6)(x + 6)(6x - 3)
A. 6 B. 3 C. 2 D. 0
Mathematics