Homework Help: Pre Calc!

Posted by Hayli on Tuesday, September 14, 2010 at 7:05pm.

A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the body t hours later is given by A(t)=10(0.8)^t and that in order for the drug to be effective, at least 2 milligrams must be in the body.

(a) Determine when 2 milligrams is left in the body.

(b) What is the half-life of the drug?

Pre Calc! - MathMate, Tuesday, September 14, 2010 at 7:28pm
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