Use the accompanying graph of a particle moving on a coordinate line with velocity v = f(t) in ft/sec at time t seconds. The axes are marked off at one-unit intervals. Use these terms to describe the motion state: moving forward/backward, increasing/decreasing speed, and resting. Recall that speed = 
. 
Give the interval(s) when the speed of the particle is decreasing.
A. (6, 8), (11, 19), and (23, 25)
B. (6, 11), (15, 17), and (23, 25)
C. (6, 11), (15, 21), and (23, 25)
D. (6, 8), (15, 19), and (23, 25)
Answer: D
Mathematics
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Solve the problem.Translate into the language of a derivative of distance with respect to time. s is the position of the car at time t. The car is slowing down.
A. 
= k, k is a constant
B. 
= 0
C. 
< 0
D. 
> 0
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Find the limit, if it exists.
A. 0 B. 5 C. Does not exist D. -8
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Determine whether A = B, A ? B, B ? A, A ? B, B ? A, or if none of these applies.A = {a, e, i, o, u}B = {e, o, i, u, a}
A. A ? B, B ? A, and A = B B. A ? B, B ? A, and A = B C. None of these D. A = B
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Use the integral test to determine whether the series converges.
A. converges B. diverges
Mathematics