The given bar graph shows the percentage of U.S. women in the labor force from 1960 through 2010.  The function f(x)=3.5√x +38 models the percentage of U.S. women in the labor force, f(x) years ager 1960. Use this formula to solve the following question   According to the model, when will 70% of the U.S. women participate in the work force?

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The given bar graph shows the percentage of U.S. women in the labor force from 1960 through 2010.  The function f(x)=3.5√x +38 models the percentage of U.S. women in the labor force, f(x) years ager 1960. Use this formula to solve the following question

 

According to the model, when will 70% of the U.S. women participate in the work force?

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