The US Population Is Approximated by the Function Where P(t)

question 248

Multiple Choice

The U.S. population is approximated by the function where P(t) is measured in millions of people and t is measured in 30-year intervals, with t = 0 corresponding to 1930. What is the expected population of the United States in 2020 ( t = 3 ) ? ​

• A) 408.0 millions
• B) 322.6 millions
• C) 616.3 millions
• D) 325.6 millions

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Definitions:

Backflow

The reverse flow of water or other substances into the pipes of a potable water supply from any source other than its intended source.

Migration

The movement of people from one place to another, often across political or economic boundaries, for various reasons including work, education, or escape from conflict.

Living Costs

The necessary expenses that individuals incur in order to maintain a standard of living, including housing, food, taxes, and healthcare.