Mathematics, 24.06.2019 17:30, ellie4678

Aball is thrown from a height of 255 feet with an initial downward velocity of 21 ft/s. the ball's height "h" (in feet) after "t" seconds is given by the following. h = 255 - 21t - 16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth.

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Aball is thrown from a height of 255 feet with an initial downward velocity of 21 ft/s. the ball's h...

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