Question 10 please help!!!!!!

Question

A ball is thrown from an initial height of 3 feet with an initial upward velocity of 30 ft/s. The ball's height, h (in feet), after t seconds is given by the following:

h = 3 + 30t - 16t²

Find ALL values of t for which the ball's height is 15 feet. Round your answer(s) to the nearest hundredth.

Select all correct answers from the choices below.

Group of answer choices

0.45

1.43

0.15

2.03

Answer 1

Set h=15 and solve for t.

-16t² + 30t + 3 = 15

-16t² + 30t - 12 = 0

Find t using the quadratic formula and get

t = 0.578 and 1.297 sec

It reaches 15 on the way up in 0.578 sec, and reaches 15 on the way down in 1.297 sec.