The population (in millions) of the United States between 1970 and 2010 can be modeled as p(x) = 203.12e0.011x million people where x is the number of decades after 1970.The percentage of people in the United States who live in the Midwest between 1970 and 2010 can be modeled as m(x) = 0.002x2 − 0.213x + 27.84 percent where x is the number of decades since 1970.† How rapidly was the population of the Midwest changing in 1980 and in 2010? (Round your answers to three decimal places.) 1980      million people per decade 2010      million people per decade

Question

The population (in millions) of the United States between 1970 and 2010 can be modeled as

p(x) = 203.12e0.011x million people

where x is the number of decades after 1970.

The percentage of people in the United States who live in the Midwest between 1970 and 2010 can be modeled as

m(x) = 0.002x2 − 0.213x + 27.84 percent

where x is the number of decades since 1970.†

How rapidly was the population of the Midwest changing in 1980 and in 2010? (Round your answers to three decimal places.)
1980      million people per decade
2010      million people per decade

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