SOLUTION: A radio active isotope decays according to the exponential decay equation where t is in days.
Round to the thousandths place.
For the half life: The half life is the soluti
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Question 982683: A radio active isotope decays according to the exponential decay equation where t is in days.
Round to the thousandths place.
For the half life: The half life is the solution (t) of the equation :
a/2=ae^−4.457t
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
a/2=ae^−4.457t
Using a = 10 and a/2 = 5
a/2=ae^−4.457t
5 = 10 e^-4.457t
5/10 = e^4.457t
0.5 = e^-4.457t
ln0.5 = -4.457t ln e (ln e = 1)
ln 0.5 = -4.457t
t = ln 0.5/-4.457
t = 0.156 days
Hope this helps:-)
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