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100 POINTS!!!
PLEASE HELP ITS EZ :)

100 POINTS PLEASE HELP ITS EZ class=

Sagot :

In 2.44 seconds lindsey be 30 feet in the air.

What is Quadratic Equation?

A quadratic equation is a second-order polynomial equation in a single variable x, ax²+bx+c=0. with a ≠ 0 .

Given:

y= -16x²+33x+45

If the height is 30 feet.

30= -16x²+33x+45

-16x²+33x+45-30=0

-16x²+33x+15=0

16x²-33x-15=0

Solving the quadratic equation

x=-b±√b²-4ac/ 2a

x= 33 ± √2049/32

x= (33+ √2049)/32    and x=33-√2049/32

x=2.44 and -0.3833

Learn more quadratic equation here:

https://brainly.com/question/2263981

#SPJ1

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