Answer:
2x+9=12x-21
-2. -2
9=10x -21
+21 +21
30=10x
Divide by 10 on both sides
30/10
x=3
Step-by-step explanation:
Answer:
(x -5)^2 + (y+3)^2 = 7^2
Step-by-step explanation:
mathematically we have the general equation for a circle given its center and the radius as;
(x-a)^2 + (y-b)^2 = r^2
where the center of the circle is (a,b) i.e (5,-3) and the radius of the circle is 7 units
So we have this as;
(x -5)^2 + (y+3)^2 = 7^2
There are two solutions for this problem. It depends if order matters or not. Since it is not mentioned in the problem, it is safe to assume that order does not matter and that choosing can be done at random. Then, this is a combination problem:
nCr = n!/r!(n-r)!
where n=13 because there are <span>13 qualified candidates</span>, and r=8 because you choose 8 chiefs at a time
nCr = 13!/8!(13-8)! = 1,287 ways
Answer:
11033
Step-by-step explanation: