Chapter5: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 28T: The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of...
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It is found that 0.5% of radium disappears in 12 years, a.) What percent will disappear in 100 years. b.) What is the half-life of the radium?
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