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December 18, 2014

Homework Help: algebra (college)

Posted by Lacy on Sunday, July 31, 2011 at 8:51pm.

The # N, in millions, of hearing impaired individuals of age X can be approximated by N= 0.00006x^3 + 0.006x^2 - 0.1x +1.4. Approximate to the nearest million the # of hearing impaired individuals of ages 25 and 40. 25= 1.75 and 40= 3 (those are millions!). I know I insert those values but I do NOT understand where I put the parenthesis in the equation!Obviously putting it after the x or before the x makes a BIG difference. HELP!!

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