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the number of households h in millions with only wireless phone service from 2001 to 2005 can be modeled by h(x)=0.5x^2+0.5x+1.2, where x represents the number of years after 2001.
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the number of households h in millions with only wireless phone service from 2001 to 2005 can be modeled by hx05x205x12 where x represents the number of years a class=

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