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December 22, 2014

Homework Help: math

Posted by miguel on Tuesday, August 6, 2013 at 11:17pm.

A smart-phone is thrown upwards from the top of a 240-foot building with an initial velocity of 32 feet per second. The height h of the smart-phone after t seconds is given by the quadratic equation h=-16t^2+32t+240. When will the smart-phone hit the ground?

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