Solve.If an object is propelled upward from a height of 128 feet at an initial velocity of 112 feet per second, then its height, h, after t seconds is given by the equation 
where h is in feet. After how many seconds does the object hit the ground? (Round your answer to the nearest tenth, if necessary.)
A. 7.0 sec
B. 8 sec
C. 4.0 sec
D. 11 sec
Answer: B
Mathematics
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Evaluate the function.Find f(-6) for
A. -54 B. -14 C. -2 D. 54
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Solve.When a principal P earns an annual interest rate r compounded yearly, the amount A after t years is A = P(1 + r)t. How long will it take $1500 to grow to $5000 at 
compounded annually? Round to the nearest whole year.
A. t ? 13 years B. t ? 16 years C. t ? 18 years D. t ? 14 years
Mathematics
Solve and graph. Write the result in interval notation.f + 9 < 6
A. (-3, ?)
B. (-?, -3]
C. (-?, -3)
D. [-3, ?)
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Find the derivative.y = (2x - 5)(4x + 1)
A. 16x - 22 B. 16x - 9 C. 8x - 18 D. 16x - 18
Mathematics