Exponential Growth and Decay February 28, 2007. P 404 Problem 5 The population of a colony of mosquitoes obeys the law of uninhibited growth. If there.

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Presentation transcript:

Exponential Growth and Decay February 28, 2007

P 404 Problem 5 The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there are 1800 after 1 day, what is the size of the colony after 3 days? How long is it until there are 10,000 mosquitoes?

The half-life of radium is 1690 years. If 10 grams is present now, how much will be present in 50 years?

Newton’s Law of Cooling

A thermometer reading 72 degrees is placed in a refrigerator where the temperature is a constant 38 degrees. If the thermometer reads 60 after 2 minutes, what will it read after 7 minutes?