Solve the problem.
-The decay of $367 \mathrm { mg }$ of an isotope is given by $\mathrm { A } ( \mathrm { t } ) = 367 \mathrm { e } ^ { - 0.03 \mathrm { t } }$, where $\mathrm { t }$ is time in years. Find the amount left after 57 years.
A) 356
B) 33
C) 64
D) 66

Question

Quizplus · Accepted Answer

To find the amount left after 57 years, substitute $t = 57$ into the given decay formula: $A(57) = 367e^{-0.03 \times 57}$. Calculating this gives approximately 66 mg.

Solve the Problem 367mg367 \mathrm { mg }367mg Of an Isotope Is Given By

Solve the Problem $367 \mathrm { mg }$ Of an Isotope Is Given By