Created by Sal Khan. In mathematics exponential decay describes the process of reducing an amount by a consistent percentage rate over a period of time. D N d t l N.
Displaystyle frac dNdt-lambda N The solution to this equation is.
Heres an exponential decay function. To find the half-life of a function describing exponential decay solve the following equation. Using the exponential decay formula to calculate k calculating the mass of carbon-14 remaining after a given time and calculating the time it takes to have a specific mass remaining. Give r as a percentage.