Question 681906
A radioactive isotope decays at a rate that is modeled by the following formula.
A(t) = 30e^ -.001t 
1. How much material was present initally ?
{{{A(0) = 30*e^0}}}
-----------
2. How much will be present in 2000 years ?
{{{A(2000) = 30*e^(-0.001*2000)}}}