<PRE><B>Question 436533</B>
A rare isotope of nuclear material is very unstable, decaying at a rate of 12% each second. Find how much isotope remains 10 seconds after 4 grams of the isotope is created? Use y=4(2.7)^-0.12t, where t represents time in seconds.
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y=4(2.7)^(-0.12t)
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f(10) = 4*2.7^(-1.2)
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f(10) = 0.0112 grams
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Cheers,
Stan H.
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