If you can pick more than one i cant read the other ones to tell you what they are but number one is one of them
The unknown b is stuck in the exponent position.
We can can fix that by using logarithms.
Log is the inverse operation of the exponential.
We'll take log of each side.
Log of what base tho?
Well, the base of our exponential is e,
so we'll take log base e of each side.
We'll apply one of our log rules next:
This allows us to take the exponent out of the log,
Another thing to remember about logs:
When the base of the log matches the inside of the log,
then the whole thing is simply 1,
So our equation simplifies to this,
As a final step, divide both sides by 3,
k, hope that helps!
Divide 3/5 by 2/3:
3
---
5 3(3)
------ = ---------- = 9/10 (answer). This is not a very satisfactory answer,
2 5(2) because 9/10 is a fraction. 2/3 is
--- larger than 3/5, so the answer would
3 be zero groups.
21, there’s 7 days in a week and three weeks so that would be 3x7=21
We know that rectangle EFGD has a width of 3. When we compare this 3 unit width to rectangle ABCD's width, we notice EFGC is 1/10 of ABCD. This means we are dividing by 10. ABCD's length happens to be 10. 10 divided by 10 is 1. EFGD's length is 1. Since we are solving perimeter, the expression would be 2l + 2w (w = 3, l = 1). 1 + 1 + 3 + 3 = 8 units.