5. A certain radioactive substance has a half-life of original amount of the substance decays. If there ar today, how many milligrams will be left after 48 da
5. A certain radioactive substance has a half-life of original amount of the substance decays. If there ar today, how many milligrams will be left after 48 da
Chapter6: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 29PT: A radiation safety officer is working with 112 grams of a radioactive substance. After 17 days,...
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Solve the following problems involving exponential growth and decay.
NUMBER 5 ONLY
Transcribed Image Text:4. The half-life of carbon-14 is approximately 6000 years. How much of 800 g of this substance will
remain after 30,000 years?
5. A certain radioactive substance has a half-life of 12 days. This means that every 12 days, half of the
original amount of the substance decays. If there are 128 milligrams of the radioactive substance
today, how many milligrams will be left after 48 days?
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