To calculate what is asked we use the formula for radioactive decay. It is expressed as follows:
An = Ao (e^(-kt))
We calculate as follows:
An = Ao (e^(-kt))
74 = 100 (e^(-k(10)))
k = 0.0301
1/2 = (e^(-0.0301t))
t = 23 hours
Hope this answers the question.
252 you multiply the 42 and 12 then devoid even by 2
Answer:
23
Step-by-step explanation:
1:24 and 2:20 and 3:30 and 4:16 and 5:12