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April 19, 2014

Homework Help: Math

Posted by Jen on Tuesday, January 24, 2012 at 4:18pm.

A model rocket is shot straight up from the roof of a school. The height at any time t is approximated by the model h=-t^2+3t+28, where h is the height in meters and t is the time in seconds. When does the rocket hit the ground?

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