Add or subtract by first simplifying each radical and then combining any like radicals. Assume that all variables represent positive numbers.-3
- 7
A. -24
B. 24
C. -10
D. -18
Answer: A
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Compute the definite integral as the limit of Riemann sums.
dx
A. 
B. 
C. 0
D. 27
Find the relative extrema of the function and classify each as a maximum or minimum.s(x) = -x2 - 8x + 65
A. Relative maximum: (4, 81) B. Relative maximum: (-8, 65) C. Relative maximum: (-4, 81) D. Relative minimum: (8, 65)
Solve the problem.A rock falls from a tower that is 464 feet high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 13,456 sec B. 21.5 sec C. 21.2 sec D. 5.4 sec
Find a and k and then evaluate the function. Round your answer to three decimal places when necessary.f(x) = 20 + a(4kx) with f(0) = 36 and f(2) = 21. Find f(1).
A. a = -16, k = 1, f(1) = 24 B. a = 16, k = 1, f(1) = 21 C. a = 4, k = -1, f(1) = 24 D. a = 16, k = -1, f(1) = 24