Solve the problem.A rock is propelled upward from the top of a building 190 feet tall at an initial velocity of 56 feet per second. The function that describes the height of the rocket in terms of time t is 
Determine the time at which the rock reaches its maximum height.
A. 2.8 sec
B. 3.5 sec
C. 1.75 sec
D. 1.4 sec
Answer: C
Mathematics
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Find the domain of the function.F(z) = 
A. {z|z is any real number} B. {z|z ? -5} C. {z|z ? 0} D. {z|z > -5}
Mathematics
Solve the problem.Sheryl's mean score on eight exams is 93.625. Find the sum of her scores.
A. 849 B. 772 C. 765 D. 749
Mathematics
Analyze the graph and write the equation of the function it represents in standard form f(x) = a(x - h)2 + k.
A. f(x) = 2(x + 1)2 + 6 B. f(x) = -2(x - 1)2 - 6 C. f(x) = 2(x - 1)2 + 6 D. f(x) = 2(x - 1)2 - 6
Mathematics
Find functions f and g so that f ? g = H.H(x) = |4 - 3x2|
A. f(x) = x2 ; g(x) = 4 - 3|x| B. f(x) = 4 - 3x2 ; g(x) = |x| C. f(x) = |x|; g(x) = 4 - 3x2 D. f(x) = 4 - 3|x|; g(x) = x2
Mathematics