Mathematics, 24.02.2020 17:27 kaitlynmoore42

The height of a ball thrown into the air after t seconds have elapsed is h = −16t2 + 40t + 6 feet. What is the first time, t, when the ball will reach a height of 20 feet? Round your answer to two decimal places.

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The height of a ball thrown into the air after t seconds have elapsed is h = −16t2 + 40t + 6 feet. W...