Answer:
11
Step-by-step explanation:
Add the numbers and then boom answer (i think and hope)
Answer:
I believe that the answer is C.
Step-by-step explanation:
=)
Answer:
A = 502 * e^-(.033 * 68) amount left after 68 rears
A = 502 e^-2.244 = 53.2 grams after 68 years
A2 = 502 e^-(.033 * T) = 251 where T is time for 1 half-life
ln (1/2) = -(.033 * T)
T = -.693 / -.033 = 21.0 years for the half-life
15 3/4% as a decimal would be 0.1575 if I’m not mistaken
