Question

How can I solve this question

Answer 1

after 3 secods:

the height of the ball is 96 feet

Explanation:

80x - 16x²

=16x(5 - x)

by substituting the value of x, which is 3 seconds

= 16(3)(5 - 2)

= 48(2) = 96 feet

thus, the height of the ball above the ground after 3 seconds = 96 feet