Solve. If an object is propelled upward from a height of 112 feet at an initial velocity of 96 feet per second, then its height h, in feet, after t seconds is given by the expression 
Factor the expression. After how many seconds will the object hit the ground?
A. -16(t - 1)(t - 7); 1 sec
B. -16(t + 1)(t + 7); 7 sec
C. -16(t - 1)(t + 7); 1 sec
D. -16(t + 1)(t - 7); 7 sec
Answer: D
Mathematics
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