Suppose that the amount, in grams, of radium-226 present in a given sample is determined by the

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Suppose that the amount, in grams, of radium-226 present in a given sample is determined by the functionimage


where t is measured in years. Approximate the amount present, to the nearest hundredth, in the sample after the given number of years.


(a) 20 


(b) 100 


(c) 500 


(d) What was the initial amount present?

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Intermediate Algebra

ISBN: 9780134895987

13th Edition

Authors: Margaret Lial, John Hornsby, Terry McGinnis

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