Question

The decay of 923 mg of an isotope described by the function A(t)=923e^-0.027t, where t is time in years. Find the amount left after 76 years. Round your answer to the nearest mg.
I am clueless 0-o

Answer 1

I'm gonna die xP

Answer 2

no you aren't
not with this problem anyways

Answer 3

\[\huge A(t)=923e^{-0.027t}\]
\[\huge A(12)=923e^{-0.027\times 12}\]

Answer 4

http://www.wolframalpha.com/input/?i=923e^%28-.027*12%29

Answer 5

ooops you wanted 76, not 12 let me change that

Answer 6

\[\huge A(76)=923e^{-0.027\times 76}\]

Answer 7

http://www.wolframalpha.com/input/?i=923e^%28-.027*76%29

Answer 8

looks like \(119\) rounded