Mathematics

7 July, 13:52

A ball is thrown from an initial height of 7 feet with an initial upward velocity of 28/fts. The ball's height h (in feet) after t seconds is given by the following. = h+7-28t16t2 Find all values of t for which the ball's height is 15 feet. Round your answer (s) to the nearest hundredth. (If there is more than one answer, use the "or" button.)

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