First, since all of the terms are multiplied, you can cancel them out to simplify them:
18/9 = 2
When a term has exponents on the top and bottom of a fraction, you subtract the bottom from the top:
c^8/c^3 = c^5
d^9/d^6 = d^3
So now, we can get rid of the fraction bar and put all of these terms into one expression:
2(c^5)(d^3)
A^2 + b^2 = c^2
9^2 + b^2 = 15^2
81 + b^2 = 225
225 - 81 = b^2
144 = b^2
square root of 144 = 12
b = 12
By definition, the half life is a quantity is the time it takes to lose half of that quantity.
So, if the half life is 60 days, it means that after 60 days you have lost half the initial amount, i.e. you're left with 100 grams.
After another 60 days, you've lost, again, half of that amount, so you're left with 50 grams.
In other words, every time a half life period passes, you're left with half the quantity you had at the beginning of that period.
So, after two half-life periods (i.e. 120 days), you'll have half of the half of the initial quantity, i.e. one quarter.
Answer:
YNW's ah family
Step-by-step explanation:
