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September 30, 2014

Homework Help: precal

Posted by laura on Friday, April 13, 2012 at 9:45am.

A cell phone company’s profit is modeled by the function p(x) = 10x − x2 − 1, where p is expressed in thousands of dollars and x is the number of phones sold in hundreds. How many phones must the company sell to make a profit of more than $15,000?

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