SOLUTION: the half-life of cesium-137 is 40 years. suppose we have a 34-g sample. find a function that models the mass remaining after t years.

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Question 450253: the half-life of cesium-137 is 40 years. suppose we have a 34-g sample. find a function that models the mass remaining after t years.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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the half-life of cesium-137 is 40 years.
suppose we have a 34-g sample.
find a function that models the mass remaining after t years.
:
The radiology decay formula
A = Ao*2^(-h/t)
Where
A = amt after t yrs
Ao = initial amt
t = time in yrs
h = half-life of substance, in yrs
:
A = 34*2^(-t/40)