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OpenStudy (anonymous):
the owner of a video store has determined that the profits P of the store are approximately given by P(x)=-x^2+9-x+68, where x is the number of videos rented daily. Find the maximum profit to the nearest dollar. Can anyone help? I'm dumb.
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OpenStudy (anonymous):
correction, 90x
OpenStudy (amistre64):
what do you know about quadratics?
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