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April 20, 2014

Homework Help: Algebra

Posted by Casey on Thursday, June 6, 2013 at 4:07pm.

A ball is thrown into the air. The height h, in feet, of the ball can be modeled by the equation h= -16t^2+20t+6, where t is the time, in seconds, the ball is in the air. When will the ball hit the ground?

first should I use x= -b/2a?

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