Tuesday

September 23, 2014

September 23, 2014

Posted by **Anonymous** on Sunday, April 29, 2012 at 1:54pm.

- pre algebra -
**bobpursley**, Sunday, April 29, 2012 at 2:59pm.986=e^(-.693t/2.52E5)

take the ln of both sides..

> -0.0140989244=-.693t/2.52E5

solve for t

t== 0.693147181*2.52E5/0.0140989244

I get a little over 12 million yars

**Answer this Question**

**Related Questions**

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 ...

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

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

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

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

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 97.4% of the ...