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.
Turn 1/4 into 3/12. Circle 5 of them, and put an x on 3 of them
Answer: -133
Step-by-step explanation:
1. 4(-6^2+3)-2(1/2)
v
2. 4(-36+3)-2(1/2)
v
3. 4(-33)-2(1/2)
v v
4. -132-1
v
5. -133
Answer:
1. x=17.5
2. x=77
Step-by-step explanation:
1. -x=-3x+35
=2x=35
x=17.5
2. -x/7+8=-3
=-x/7=-11
=-x=-77
x=77
Answer:
33.75
Step-by-step explanation:
45x0.75=33.75
