SOLUTION: Find the half-life of radium 226, which decays according to the function defined by A(t) = Ao.e^-00043t, where t is time in years.

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Question 758714: Find the half-life of radium 226, which decays according to the function defined by A(t) = Ao.e^-00043t, where t is time in years.
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!

At half-life, is half of
what you started with, or

Divide both sides by

Take the natural log of both sides



yrs
check:




close enough

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