Divide. Write the answer in lowest terms and as a whole or mixed number where possible.21 ÷ 
A. 12
B. 
C. 7
D. 35
Answer: D
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The function s = f(t) gives the position of a body moving on a coordinate line, with s in meters and t in seconds.s = 8t2 + 4t + 5, 0 ? t ? 2Find the body's speed and acceleration at the end of the time interval.
A. 20 m/sec, 2 m/sec2 B. 41 m/sec, 16 m/sec2 C. 36 m/sec, 16 m/sec2 D. 36 m/sec, 32 m/sec2
Solve the problem.The lengths of human pregnancies are normally distributed with a mean of 264 days and a standard deviation of 12 days. What is the probability that a pregnancy lasts at least 300 days?
A. 0.4834 B. 0.9834 C. 0.0179 D. 0.0013
Find the function represented by the power series. 
A. 
B. - 
C. - 
D. 
Find the maximum or minimum point of the function and state whether it is a maximum or minimum.f(x) = - x2 - 4x - 5
A. (- 2, - 1); maximum B. (1, 0); minimum C. (0, 2); minimum D. (1, 2); maximum