Wednesday

August 20, 2014

August 20, 2014

Posted by **Erica** on Tuesday, October 10, 2006 at 1:07pm.

This looks more like algebra, where D equals 2. Solve for h and you'll have your answer in unit hours.

Solve the formula when D=2

2=5e ^-0.4h

Divide both sides by 5 and take the ln to solve for h.

**Related Questions**

math - The function D(h)=7e^-0.4(h) can be used to determine the milligrams D of...

Math - The function D(h)=7e^-0.4(h) can be used to determine the milligrams D ...

Math(Quick question) - The function D(h)=7e^-0.4(h) can be used to determine ...

algebra - using formula d(h)=8e^-0.4h to determine the milligrams d of a certain...

precalc - A certain drug has a half-life of 2 hours in the bloodstream. The ...

algebra 2 - The number of milligrams of a drug that remains in a patient’s ...

algebra 2 - the number of milligrams of a drug that remains in a patient's ...

math calculus - The concentration C (in milligrams per milliliter) of a drug in ...

math calculus - The concentration C (in milligrams per milliliter) of a drug in ...

Math - The concentration C(t), in milligrams per cubic centimetre, of a certain ...