B) 64 cm because 8+8+8+8+8+8+8+8, also known as 8x8=64
Step-by-step explanation:
D I think sorry if it's wrong :(
Given that
attains a maximum at
, it follows that
at that same point. So integrating once gives
and so the first derivative is
.
Integrating again, you get
You know that this curve passes through the point (2, -1), which means when
, you have
:
and so
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:
1 over 400
Step-by-step explanation:
I think it is 3 over 1200. I think you can divide the 1200 by 3.
