Solve the problem.April shoots an arrow upward into the air at a speed of 64 feet per second from a platform that is 12 feet high. The height of the arrow is given by the function h(t) = -16t2 + 64t + 12, where t is the time is seconds. What is the maximum height of the arrow?
A. 8 ft
B. 64 ft
C. 76 ft
D. 12 ft
Answer: C
Mathematics
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Find the standard equation of a parabola with the given focus or directrix. Assume that the vertex is at the origin.Directrix x = -9
A. y2 = -9x B. x = 36y2 C. y2 = 36x D. x2 = 36y
Mathematics
Write summation notation for the expression.h(x1) + h(x2) + h(x3) + h(x4) + h(x5) + h(x6)
A. 
B. 
C. 
D. 
Mathematics
Find the limit.
A. Does not exist B. ? C. 0 D. -?
Mathematics
Use Green’s Theorem to evaluate the line integral along the positively oriented closed curve C.
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Mathematics