An accident at a nuclear power plant has left the surrounding area polluted with
Chapter 3, Problem 51(choose chapter or problem)
An accident at a nuclear power plant has left the surrounding area polluted with radioactive material that decays naturally. The initial amount of radioactive material present is 15 su (safe units), and 5 months later it is still 10 su. (a) Write a formula giving the amount A.t/ of radioactive material (in su) remaining after t months. (b) What amount of radioactive material will remain after 8 months? (c) How longtotal number of months or fraction thereofwill it be until A D 1 su, so it is safe for people to return to the area?
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