SOLUTION: The half-life of a certain radioactive material is 67 days. An initial amount of the material has a mass of 25 kg. Write an exponential function that models the decay of this mater
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Question 607380: The half-life of a certain radioactive material is 67 days. An initial amount of the material has a mass of 25 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 27 days. Round your answer to the nearest thousandth. Answer by ewatrrr(24785) (Show Source):
Hi,
Q = Q[0]e^-kt
The half-life of a certain radioactive material is 67 days
.5 = e^-67k
ln(.5)/-67 = k = .01
Q =
An initial amount of the material has a mass of 25 kg.
Q =
Find how much radioactive material remains after 27 days
Q =
Q = 19.084
