Mathematics, 28.03.2021 22:00 emileep13

A person throws a ball down toward the ground off the top of a 20-foot tall building. Suppose the polynomial h(t)= −16t^2−4t+20 models the ball's height above the ground in feet t seconds after it was thrown.

How many seconds does it take for the ball to hit the ground?
seconds

Round your answer to 2 decimal places.

Answers: 3

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A person throws a ball down toward the ground off the top of a 20-foot tall building. Suppose the p...