A sample of radioactive material has been decaying for 5 years. Three years ago, there were 6.0

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A sample of radioactive material has been decaying for 5 years. Three years ago, there were 6.0 g of material left. Now 5.2 g are left.
a. What is the rate of decay?
b. How much radioactive material was initially in the sample?
c. Find an equation to model the decay.
d. How much radioactive material will be left after 50 years (45 years from now)?
e. What is the half-life of this radioactive material?
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Discovering Advanced Algebra An Investigative Approach

ISBN: 978-1559539845

1st edition

Authors: Jerald Murdock, Ellen Kamischke, Eric Kamischke

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