The decay of 230 mg of an isotope is described by the function A(t)= 230e-0.031t, where t is time in years. Find the amount left after 26 years. Round your answer to the nearest mg.
Accepted Solution
A:
The function is A(t) = 230×e^(-0.031t) A the amount left after 26 years ? 230 the current amount E constant -0.031 rate of decreases each year T time 26 years
A (26)= 230×e^(-0.031×26) A (26)= 102.72 round your answer to get 103