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July 2, 2015

Homework Help: Algebra

Posted by TJ on Wednesday, October 17, 2007 at 11:31am.

How would I work this?
The equation h= -16t^2 +112t gives the height of an arrow shot upward from the ground with an initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a height of 120 ft.

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