7. (6 points) The half-life of radium-226 is 1620 years. Given a sample of 2 grams of radium-226, write a function in th
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7. (6 points) The half-life of radium-226 is 1620 years. Given a sample of 2 grams of radium-226, write a function in th
7. (6 points) The half-life of radium-226 is 1620 years. Given a sample of 2 grams of radium-226, write a function in the form Q(t)= Qed to model the quantity left Q(t) (in grams) after t years. Find an exact value for k in terms of In or log. Then, use a calculator to approximate k to six decimal places.
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