Solve the problem.
-An element decays at the rate of S(t) = se-0.038t, where s is the initial amount in grams and t is the time in years since this initial amount was present. If you have a 30-gram piece of this
Element, how many grams will you have 2 years from now? Round your answer to the nearest
Tenth of a gram.
A) 0.9 g
B) 32.4 g
C) 14.4 g
D) 27.8 g

Question

Quizplus · Accepted Answer

To find the amount of the element left after 2 years, substitute s = 30 grams and t = 2 years into the decay formula: S(t) = 30e^(-0.038*2). Calculating this gives approximately 27.8 grams.

Solve the Problem. -An Element Decays at the Rate of S(t) = Se-0.038t