What percentage of families in the united states were


The percentage of families that were married households in the United States between 1970 and 2000 is approximatelyP(t) = 86.9e-0.05t (0 = t = 3)where t is measured in decades, with t = 0 corresponding to 1970.

a) What percentage of families in the United States were married households in 1970? In 1980? In 1990? In 2000?

b) Sketch the graph of P .

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Mathematics: What percentage of families in the united states were
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