Answered: The amount of radioactive radium, whose…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

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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The amount of radioactive radium, whose half-life is 1620 years, remaining after t years, is given by the formula below. If the initial sample contains 45 grams, find the amount remaining after 150 years.

?(?) = 45(1/2)^t/1620 (Please round your answer to the nearest tenth.)

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