The radioactive carbon14 in an organism at the time of its d

The radioactive carbon-14 in an organism at the time of its death decays according to the equation

A = A subroot(0) e ^-0.000124t

where t is the time in years and A0 is the amount of carbon-14 present at time t = 0. (You can think of this model as how much of carbon-14 is still remaining after t years.) Estimate the age of a skull uncovered in an archeological site if 10% of the original amount of carbon-14 is still present.

Solution