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A substantial percentage of the United States populationis foreign-born. The bar graph
Chapter 1, Problem 39(choose chapter or problem)
A substantial percentage of the United States populationis foreign-born. The bar graph shows the percentage offoreign-born Americans for selected years from 1920 through2014. The percentage, p, of the United States population thatwas foreign-born x years after 1920 can be modeled by theformulap = 0.004x2 - 0.35x + 13.9. According to this model, in which year will 19% of the UnitedStates population be foreign-born? Round to the nearestyear.
Questions & Answers
QUESTION:
A substantial percentage of the United States populationis foreign-born. The bar graph shows the percentage offoreign-born Americans for selected years from 1920 through2014. The percentage, p, of the United States population thatwas foreign-born x years after 1920 can be modeled by theformulap = 0.004x2 - 0.35x + 13.9. According to this model, in which year will 19% of the UnitedStates population be foreign-born? Round to the nearestyear.
ANSWER:Step 1 of 4
We need to find out the year in which the number of the foreign-born population in the United States is going to be equal to 
The percentage is modeled by the formula
where 
