February 21, 2017

Homework Help: Science

Posted by jessica on Tuesday, March 6, 2012 at 11:03pm.

Radioactive substance decays so that after t years, the amount remaining, expressed as a percent of the original amount, is A(t)=100(1.6)^(-t).

a) Determine the function A’, which represent the rate of decay of the substance.

b) what is the half-life for this substance?

c) what is the rate of decay when half the substance has decayed?

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