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April 24, 2015

Homework Help: Math

Posted by Chiquita on Friday, November 25, 2011 at 7:00pm.

Use of the Internet in a country is given by the function f(x)=0.485x^2-1.694x+0.315, where the output is in millions of users. In this formula x=6 corresponds to 1996, x=7 corresponds to 1997, and so on until x=20 corresponds to 2010. Estimate when the number of Internet users in the country reached 13 million.
The number of Internet users in the country reached 13 million during the year?

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