Solve.If an object is thrown upward with an initial velocity of 112 ft/sec, its height, h, in feet, after t seconds is given by  Find the number of seconds before the object hits the ground. (Round your answer to the nearest tenth, if necessary.)

A. 7.5 sec
B. 7 sec
C. 3.5 sec
D. 56 sec


Answer: B

Mathematics

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Mathematics