Question

A ball is thrown from an initial height of 4 feet with an initial upward velocity of 34f

The ball's height
h (in feet) after t seconds is given by the following.
h=4+34t-16t2
Find all values of t for which the ball's height is 20 feet.
Round your answers) to the nearest hundredth.
If there is more than one answer, use the "or"

Answer 1

Answer Therefore, the values of for which the ball’s height is 20 feet are t=2 or t = 1/8