Wednesday

September 17, 2014

September 17, 2014

Posted by **Andy G** on Monday, March 17, 2014 at 8:58pm.

a. find the rule of the function that gives the amount remaining from an initial quantity of 100 milligrams of carbon14 after t years.

b. the burial cloth of an egyptian mummy i sestimated to contain 59% of the carbon 14 it contained originally. how long ago was the mummy buried?

- PreCalculus -
**Reiny**, Monday, March 17, 2014 at 9:50pmamount = 100 (1/2)^(t/5730)

b)

59 = 100 (.5)^(t/5730)

.59 = .5^(t/5730)

ln .59 = (t/5730) ln (.5)

t/5730 = ln .59/ln .5 = .76121314

t = 4361.75 yrs

**Answer this Question**

**Related Questions**

calculus - Carbon-14 is a radioactive substance produced in the Earth's ...

half-life - ok so i got... the half life of carbon-14 is 5730 years, the ...

half-life - ok so i got... the half life of carbon-14 is 5730 years, the ...

Math - The half-life of carbon-14, which is used in dating archaeological finds...

Algebra - An artifact was found and tested for its carbon-14 content. If 74% of ...

Precalculus - The burial cloth of an Egyptian mummy is estimated to contain 57% ...

Precalculus - The burial cloth of an Egyptian mummy is estimated to contain 57% ...

Biology - The half-life of Carbon-14 is 5730 years. What is the age of a fossil ...

ChemB - The activity of carbon 14 in living tissue is 15.3 disintegrations per ...

math - how to compute this problem? a certain element has a half life of 12 ...