Chapter10: Exponential And Logarithmic Functions
Section10.5: Solve Exponential And Logarithmic Equations
Problem 10.89TI: The half-life of magnesium-27 is 9.45 minutes. How much of a 10-mg sample will be left in 6 minutes?
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A utility company burns coal to generate electricity. The cost C in dollars of removing p% of the air pollutants in the stack emissions is attached. (a) Find the cost of removing 50% of the pollutants. (b) Find the cost of removing 90% of the pollutants. (c) Find the limit of C as p approaches 100 from the left and interpret its meaning.
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