Friday

November 21, 2014

November 21, 2014

Posted by **lady** on Saturday, October 22, 2011 at 7:14pm.

- math -
**Damon**, Saturday, October 22, 2011 at 8:04pm2.52*10^5 = 252 thousand

do it all in thousands of years

.5 = e^-k(252)

ln .5 = -252 k

solve for k

then

.974 = e^-kt

ln .974 = - k t solve for t

**Answer this Question**

**Related Questions**

math - The half-life of 234U, uranium-234, is 2.52 105 yr. If 98.3% of the ...

Math - The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.7% of the ...

math - The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 98.7...

math - The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 97.4...

math - The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 97.7...

algebra - The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.7% of the ...

algebra - The half-life of 234U, uranium-234, is 2.52 105 yr. If 98.4% of the ...

algebra - The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.7% of the ...

algebra - The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.7% of the ...

MATH104 - he half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 97...