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Unformatted text preview: years ago. (a) Find the decline rate. (b) When will the population be 50% of the original? (find the halflife) 4) How long does it take amount to double at 8.5% compounded: a) annually b) continuously 5) If the quantity of a certain radioactive substance is decreases by 5% in 10 hours, find the halflife. 6) The population of a certain town is declining exponentially due to immigration. If only 80% of the original population are still in town after 10 years: a) Find the decline rate. b) How long will it take for the population to be half what it was?...
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This note was uploaded on 02/29/2012 for the course MATH 119 taught by Professor Maanomran during the Fall '09 term at Indiana UniversityPurdue University Fort Wayne.
 Fall '09
 MaanOmran
 Math

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