Mathematics, 16.12.2019 04:31 sydneyyyy7014

He equation $y=-16t^2+22t+45$ describes the height (in feet) of a ball thrown upwards at $22$ feet per second from $45$ feet above the ground. find the time (in seconds) when the ball will hit the ground. express your answer as a common fraction.

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He equation $y=-16t^2+22t+45$ describes the height (in feet) of a ball thrown upwards at $22$ feet p...

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