Question

a ball is thrown into the air. its height in feet after t seconds is given by the function h(t) = -5t² + 20t. how high will the ball be after 3 seconds? 12/16 5 ft 15 ft 20 ft 10 ft

Explanation:

Step1: Identify the function

The height function is \( h(t) = -5t^2 + 20t \). We need to find \( h(3) \).

Step2: Substitute \( t = 3 \) into the function

Substitute \( t = 3 \) into \( h(t) \):

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Answer:

15 ft