Find the mean:
6 + 6 +10 + 8 + 10 +8 = 48
48 / 6 = 8
The mean is 8.
Now for each number, subtract the mean and square the result:
6 -8 = -2, -2^2 = 4
6 – 8 = -2, -2^2 = 4
10 – 8 = 2, 2^2 = 4
8 – 8 = 0, 0^2 = 0
10 – 8 = 2, 2^2 = 4
8 – 8 = 0, 0^2 = 0
Now find the mean of those results:
4 + 4 +4 +0 +4 + 0 = 16
16 / 6 = 2.6666
Now find the square root:
SQRT(2.666) = 1.63
The answer is A.
Answer:
uál es el pr
Step-by-step explanation:
i might be wrong about this one
That is the wrong answer. I just took the and got it wrong the right answer is (-4,-1).
Answer:
C. The ratio of the area to the circumference is equal to half the radius.
Step-by-step explanation:
The area of a circle can be written as;
Area A = πr^2
The circumference of a circle is;
Circumference C = 2πr
Using the formula, w can derive the relationship between the two variables.
A = kC
k = A/C
Substituting the two formulas;
k = (πr^2)/(2πr) = r/2
So,
A = (r/2)C
A/C = r/2
The ratio of the area to the circumference is equal to half the radius.
Given;
Area = 200.96
Circumference = 50.24
Radius = 8
To confirm;
k = r/2 = 8/2 = 4
Also,
A/C = 200.96/50.24
A/C = 4
