Question
A sample of 600 grams of radioactive substance decays according to the function A(t)=600e^-0.045t where t is the time in years. How much of the substance will be left in the sample after 20 years? Round to the nearest whole gram.
A 778 g
B 1 g
C 0 g
D 244 g
A 778 g
B 1 g
C 0 g
D 244 g
Answers
Carlos
Just plug in 20 for t in the equation