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?

Respuesta :

Answer:

12.24489795 + 0.06453627 radical 36000 - 49y

Step-by-step explanation:

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

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