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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?
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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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