Posted by **kayse** on Saturday, November 24, 2007 at 4:08pm.

This question involves the half-life formula. In this exercise, we are to give a half-life for an exponentially decaying quantity. Need answer to the following: The half-life of a drug in the bloodstream is 4 hours. By what factor does the concentration of the drug decrease in 24 hours? in 36 hours?

## Answer this Question

## Related Questions

- hard math question - When a certain drug enters the blood stream, its potency ...
- physics - If the physical half-life of sulfur-35 is 87.1 days, and the biologic...
- Chemistry - Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half ...
- Math - Suppose a quantity is halvd every 18 years. use the approximate half-...
- Math - A drug is eliminated from bloodstream exponentially with half life of ...
- life science - I cant grasp half life - the study guide question is how is half ...
- CALCULUS PLEASE HELP - suppose m(0) milligrams of a drug are put in the blood of...
- Advanced Math Help! - suppose m(0) milligrams of a drug are put in the blood of ...
- CALCULUS PLEASE HELP!! - suppose m(0) milligrams of a drug are put in the blood ...
- half-life - 1. The half-life of a first-order reaction is 9.89 minutes. How many...