Mathematics, 30.03.2020 20:30 myamiller558

A ball is thrown from a height of 197 feet with an initial downward velocity of 21 ft/s. the balls height h (in feet) after t seconds is given by the following h=197 -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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