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Use the approximate​ half-life formula for the case described below. Discuss whether the formula is valid for the case described.

Urban encroachment is causing the area of a forest to decline at the rate of

6

​%

per year. What is the​ half-life of the​ forest? What fraction of the forest will remain in

30

​years?

What is the​ half-life of the​ forest?

? years

​(Type an integer or decimal rounded to the nearest hundredth as​ needed.)

Guest Nov 17, 2017
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 #1
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I don't know what the approximate formula is, but my approach would be as follows:

 

.

Alan  Nov 17, 2017

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