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 7 7 % per year. What is the half-life of the forest? What fraction of the forest will remain in 10 10 years? What is the half-life of the forest? nothing years (Type an integer or decimal rounded to the nearest hundredth as needed.) What fraction of the forest will remain in 10 10 years? nothing (Type an integer or decimal rounded to the nearest thousandth as needed.) Is this formula valid in the case described? No Yes
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 7 7 % per year. What is the half-life of the forest? What fraction of the forest will remain in 10 10 years? What is the half-life of the forest? nothing years (Type an integer or decimal rounded to the nearest hundredth as needed.) What fraction of the forest will remain in 10 10 years? nothing (Type an integer or decimal rounded to the nearest thousandth as needed.) Is this formula valid in the case described? No Yes
Chapter5: Exponential And Logarithmic Functions
Section5.4: Exponential And Logarithmic Equations
Problem 97E
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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
7
7 % per year. What is the half-life of the forest? What fraction of the forest will remain in
10
10 years?
What is the half-life of the forest?
nothing
years
(Type an integer or decimal rounded to the nearest hundredth as needed.)
What fraction of the forest will remain in
10
10 years?
nothing
(Type an integer or decimal rounded to the nearest thousandth as needed.)
Is this formula valid in the case described?
No
Yes
Click to select your answer(s).
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