Solve.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height h of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. 2 sec
B. 5 sec
C. -2 sec
D. 160 sec
Answer: B
Mathematics
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Write a chain rule formula for the following derivative.
for u = f(x); x = g(p, q, r)
A. 
= 
B. 
= 
C. 
= 
+ 
+ 
D. 
= 
Mathematics
Solve the problem.Find an upper bound for the error in estimating 
using the Trapezoidal Rule with n = 8 steps. Give your answer as a decimal rounded to four decimal places.
A. 0.6227 B. 0.3805 C. 0.2076 D. 0.3634
Mathematics
Provide an appropriate response.Is 
simplified?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. 2401x28y32z4 B. 7x7y8z C. 2744xyz D. 24.5x7y8z
Mathematics