Question

Use this equation

y=-16(t-2)^2+64
when is the football 40ft high
There are 2 answers.
One if them is between
.5 to 1 and the other is 3 to 3.5
show work!!

Answer 1

Explanation:

40=-16(t-2)²+64

-16(t-2)²=40-64

-16(t-2)²=-24

(t-2)²=24/16=3/2=1.5

t-2=±√1.5

t=2±√1.5

either t=2+√1.5≈3.22

or

t=2-√1.5≈0.78