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You can model the population of a certain city between the years of 1970 and 2000 by...
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`P(x) = 55000sqrt(x-1960)`
P(x) is the population and x is the year.
When `P(x) = 235000`
`235000 = 55000sqrt(x-1960)`
`235000/55000 = sqrt(x-1960)`
`4.273 = sqrt(x-1960)`
`18.256 = (x-1960)`
` x = 1978.256`
So the population will be 235000 in the year of 1978.
Posted by jeew-m on January 10, 2013 at 4:06 AM (Answer #1)
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