Question

Solve the equation h = -16t2 + 255 for t, using the quadratic formula to determine the time it takes the rock to reach the canyon floor.

Answer 1

t=4 seconds to reach the cannon floor

Explanation:

ax^2+bx+c=0

0=-16t^2+255

-255=-16t^2

t^2=15.9375

t= 3.99

round it up...

t=4 seconds to reach the cannon floor

hope this helps!!! :)