Question

A firework is launched from the ground. The quadractic function y=-4.9x^2+120x models the fireworks height in meters above the ground after x seconds. About how long long is the firework in the air?

Answer 1

12.24489795 + 0.06453627 radical 36000 - 49y

Explanation:

Solve the equation for x by finding a , b , and c of the quadratic then applying the quadratic formula.

Hope this helped!