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OpenStudy (anonymous):
The half-life of a certain radioactive material is 42 days. An initial amount of the material has a mass of 49kg. Write an exponential function that models the decay of this material. Find out how much radioactive material remains after 8 days. Round your answer to the nearest thousandth. I am new to logarithms so if you know logarithms, I would appreciate some help. I am not asking for the answer to the problem, I want to know how to model problems like these and solve them.
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