I am sure you meant:
m(t) = 9 e^(-.012t)
so if t = 0 , remember that anything^0 = 1
so m(0) = 9
A radioactive substance decays in such a way that the amount of mass remaining after t days is given by the function
m(t) = 9e−0.012t
where m(t) is measured in kilograms.
(a) Find the mass at time t = 0.
3 answers
ALSO How much of the mass remains after 49 days? (Round your answer to one decimal place.) what would this look like just to double check?
well, I suppose I will try although really I am sure you could try first.
9 e^-(.012*49)
= 9/(e^.588)
= 9/1.8
= 5
9 e^-(.012*49)
= 9/(e^.588)
= 9/1.8
= 5
1 answer