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18. The half-life of radioactive Mathium is 21.77 years. What percent of a present amount will remain after 18 years? (Use A = C, ek¢, KC

18. The half-life of radioactive Mathium is 21.77 years. What percent of a present amount will remain after 18 years? (Use A = C, ek¢, KC

Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section4.CT: Chapter Test
Problem 11CT
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The text on the image is an exercise related to radioactive decay: --- **XI. Solve. (Round to the nearest tenth of a percent.)** 18. The half-life of radioactive Mathium is 17.7 years. What percent of a present amount will remain after 18 years? (Use A = Ce^(kt)) --- In this question, you're asked to calculate the remaining amount of a radioactive substance after a specified period, given its half-life. The formula A = Ce^(kt) is used, where: - A is the amount remaining, - C is the initial amount, - k is the decay constant, - t is the time. The handwritten note next to the word "C" seems to indicate a focus on the initial amount in the formula. There are no graphs or additional diagrams included in the image.
Transcribed Image Text:The text on the image is an exercise related to radioactive decay: --- **XI. Solve. (Round to the nearest tenth of a percent.)** 18. The half-life of radioactive Mathium is 17.7 years. What percent of a present amount will remain after 18 years? (Use A = Ce^(kt)) --- In this question, you're asked to calculate the remaining amount of a radioactive substance after a specified period, given its half-life. The formula A = Ce^(kt) is used, where: - A is the amount remaining, - C is the initial amount, - k is the decay constant, - t is the time. The handwritten note next to the word "C" seems to indicate a focus on the initial amount in the formula. There are no graphs or additional diagrams included in the image.
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