Mathematics, 30.03.2020 05:58 csnow

A ball is kicked 4 feet above the ground with an initial vertical velocity of 55 feet per second. The function h(t)=−16t^2+55t+4 represents the height h (in feet) of the ball after t seconds. Using a graph, after how many seconds is the ball 30 feet above the ground? Round your answers to the nearest tenth.

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A ball is kicked 4 feet above the ground with an initial vertical velocity of 55 feet per second. Th...