Answer:
Step-by-step explanation:
Answer:
The answer is D. (3+22)÷5
2x + x = 180
This is because 2x is on one side while x is on the other, if those two angles add up they must add up to 180 because the two angles form a 180 degree angle or just a straight line
2x + x = 180
3x = 180
x = 60
Number8)4n+6-2n=2(n+3)
4n+6-2n=2n+6 then collect the like terms
(4n-2n-2n=0)
0n=0
2(3b-4)=4b-11
6b-8=4b-11 collect the like terms
(6b-4b=2b)(-11+8=-3)
answer
2b=-3 then divide both sides by 2
b=-1.5
The standard deviation of a dataset is the square root of the variance.
The standard deviation of the same set of data is 4
The variance is given as:

Take the square root of both sides to calculate the standard deviation

Substitute 16 for
.
So, we have:

Take the positive square root of 16

Hence, the standard deviation of the same set of data is 4
Read more about standard deviations at:
brainly.com/question/475676