Answer:
y - x + 8 = 0
Step-by-step explanation:
divide all sides by 4
Answer:
x is 6
<h3>step by step explanation</h3>
8^2x-2 = 8^4x-14
Equating the powers of 8
2x -2 = 4x -14
2x-4x = -14+2
-2x = -12
Dividing through by -2
x = 6
C.
You can get this by taking the difference and dividing by the standard deviation.
Answer:
x = 5, y = 2
Step-by-step explanation:
First, isolate y in the top equation.
Next, substitute y in the bottom equation.
Simplify.
Combine like terms.
Isolate x on one side.
Isolate x.
Substitute x into
Simplify.
Isolate y.
Answer:
9 pi
Step-by-step explanation:
First find the circumference of the circle
C =2 * pi *r
C = 2 * pi *9
C = 18 pi
This is a semicircle which is 1/2 of a circle
Take 1/2 of the circumference
1/2 C = 1/2 ( 18 pi)
1/2 C = 9 pi