About 492 feet per minute
9 • 54.68066 = 492.126
Rounding to the nearest whole number gets you 492
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
Yes it does I went on Desmos graphing Calculator and put in the equation and got those answers
A,81 because if you try checking 81 will be the only composite number im in 6 grade.....
