Answer: 18.84
Explanation: When looking for the circumference you have to follow a certain formula; C= πd
Since the line is in the middle of the circle, you take half of 12, which is 6, and multiply it by pi. So C= 3.14 x 6 which gives you 18.84
8y-1-28y-20-6y+27
8y-28y-6y-1-20+27
-26y+6
I think.
2 over
3a3 + 3a2 - 3
Answer:
a = -1
b = -9
c = 9
d = 3
e = 3
f = 2
g = 3/2
Step-by-step explanation:
* Lets explain how to solve the problem
∵
are rational fractions
- To add or subtract the rational fractions they must have same
denominator
∵ 6 - 2x must be written 2x - 6, take (-1) as a common factor from 6 - 2x
∴ - 1(-6 + 2x) = - 1(2x - 6)
∴ 
∴ a = -1
∵ 9 ÷ -1 = -9
∴ = 
∴ b = -9
∵ The denominators of the two fractions are 2x - 6
∴ We can add them by adding their numerator
∵ 3x + -9 = 3x - 9
∴ = 
∴ c = 9
∵ 3x - 9 has a common factor 3
∴ 3x - 9 = 3(x - 3)
∵ 2x - 6 has common factor 2
∴ 2x - 6 = 2(x - 3)
∴ = 
∴ d = 3 , e = 3 , f = 2
- The fraction has same factor (x - 3) up and down then we can cancel
them together
∴ = 
∴ g = 3/2