Sunday

September 21, 2014

September 21, 2014

Posted by **Liz** on Thursday, July 19, 2012 at 6:21pm.

P(t) =

556

1 + 3.72e−0.5t

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)? (Round your answer to the nearest whole number.)

million people

- Calc -
**Reiny**, Thursday, July 19, 2012 at 6:31pmJust evaluate P(3), (sub in 3 wherever you see a t )

btw, is this supposed to be a fraction?

- Calc -
**Liz**, Thursday, July 19, 2012 at 6:49pmNot a fraction, so 331.7 thank you!!

**Answer this Question**

**Related Questions**

Calculus - The total worldwide box-office receipts for a long-running movie are ...

Algebra 2 - Recursion formula for a given population for each interval,n, at a ...

Calculus - The rate of growth of the profit (in millions of dollars) from a new ...

Math - One model of Earth's population growth is , where t is measured in years ...

Chemistry - In Millikan's experiment, the charge on each drop of oil was ...

chemistry - In Millikan's experiment, the charge on each drop of oil was ...

business calc - The demand function for a certain brand of CD is given by p = &#...

math - A company has sales (measured in millions of dollars) of 50, 60, and 75 ...

Math - A town has population 225 people at year t=0. Write a formula for the ...

Calc - If t is measured in hours and f '(t) is measured in knots, then integral ...