Solve.April shoots an arrow upward into the air at a speed of 64 feet per second from a platform that is 23 feet high. The height of the arrow is given by the function h(t) = -16t2 + 64t + 23, where t is the time is seconds. What is the maximum height of the arrow?
A. 23 ft
B. 87 ft
C. 64 ft
D. 19 ft
Answer: B
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Solve the problem.Evaluate 
at (u, v) = (5, 3) for the function w(x, y) = xy2 - ln x; x = eu+v, y = uv.
A. 675e8 - 1 B. -1 C. 375e8 - 1 D. 300e8 - 1
Find the term indicated in the expansion.(2x - 3y)10; 7th term
A. 1,224,720x6y4 B. -816,480x4y7 C. 2,449,440x4y6 D. -816,480x6y4
Find the absolute extreme values of the function on the interval.f(x) = x2/3, -1 ? x ? 27
A. absolute maximum is 9 at x = 27; absolute minimum is 0 at x = 01 B. absolute maximum is 9 at x = 27; absolute minimum does not exist C. absolute maximum is 9 at x = 27; absolute minimum is 1 at x = -1 D. absolute maximum is 8 at x = 27; absolute minimum is 0 at x = 01
Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the first-quadrant portion of the circle 
if the density of the rod is 
A. 
= 3, 
= 3
B. 
= 2, 
= 2
C. 
= 
, 
= 
D. 
= 
, 
= 