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Mathematics 11 Online
OpenStudy (anonymous):

The function f(x)= -2x^2+12x+32 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground?

OpenStudy (ankit042):

you have to make f(x)=0 and solve the quadratic equation

OpenStudy (primeralph):

Yeah, equate it to 0.

OpenStudy (anonymous):

can u write out the quadratic formula with the numbers plugged in

OpenStudy (primeralph):

Can't you do it?

OpenStudy (anonymous):

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