The height h of the ball is given be h = 1.2 + 20t -5t^2, where t is in seconds. If the ball is caught at the same height at which it was hit, how long is it in the air?(adsbygoogle = window.adsbygoogle || []).push({});

How do I figure out the time? quadratic function? -b/2a?

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# Homework Help: Quadratic Word Problems

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