If the half-life is t, then every t days, the amount of the radioactive isotope will be cut in half.
(1/2)^(number of half-lives) = 3%
number of half-lives = ln(0.03) / ln(0.5)
This gives the number of half-lives as 5.06.
Then 300 days = (5.06)(length of 1 half-life)
length of 1 half-life = 300 / 5.06 = 59.29 days
Answer:
C
Step-by-step explanation:
1.60 charge for 16 minutes. 160/16 =10 thus .10 cents per minute
Answer: 2(x^2-2x+4)
Step-by-step explanation:
You can factour out 2:
2(x^2-2x+4)
Answer:
No, is 0.675
Step-by-step explanation:
