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OpenStudy (anonymous):
Y=-16x^2+68.5(0) please please solve! quadraic equation!
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OpenStudy (cwrw238):
-16x^2+68.5 = 0 ?
OpenStudy (anonymous):
im so confused with this problem...its supposed to how long the fountain will stay in the air but this is the equation it gave me..:/
OpenStudy (cwrw238):
rearrange 16x^2 = 68.5 take square roots of both sides 4x = +- sqrt68.5 x = sqrt68.5 / 4 or - sqrt68.5 / 4 if answer is a time then you can ignore the negative solution
OpenStudy (anonymous):
okk thanks!
OpenStudy (cwrw238):
yw
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