Friday

August 22, 2014

August 22, 2014

Posted by **Anonymous** on Friday, April 26, 2013 at 11:11pm.

write an exponential function that models this situation where Y is the amount of substance and X is time in days.

use your equation for problem 28 to complete the chart.

- algebra -
**Reiny**, Friday, April 26, 2013 at 11:15pmamount = 100 (1/2)^(t/3) , where t is in days

No idea what problem 28 is, so .....

- algebra -
**Anonymous**, Wednesday, May 15, 2013 at 3:12pm0=100

3=50

6=25

9=12.5

12=6.25

**Related Questions**

Alegbra - Andrew measures the amount of a very unstable substance to be 100 ...

Math/Calculus - After 5 days, a particular radioactive substance decays to 37% ...

Science - Radioactive substance decays so that after t years, the amount ...

Physics - Suppose a hypothetical radioactive nucleus (Hy) has a half-life of 10 ...

Physical Science- Help Please! - Suppose that you are given a 100 gram sample of...

calculus - assume the half-life of the substance is 31 days and the initial ...

calculus - The rate at which an amount of a radioactive substance decays is ...

Algebra 2 - A 14 gram sample of a substance that's used to preserve fruit and ...

Physics - A radioactive substance decays from 2.0kg to 1.6kg in 156 days. What ...

math - if the rate for radioactive decay for a substance is r=-.0063 and time is...