Mathematics, 23.04.2020 23:29 Anthony1442

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.

(The question asks for two answers)
The ball is 30 feet above the ground after second(s) and second(s).

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

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