Answer:
x=50
Step-by-step explanation:
To find the angle on the bottom left you would subtract 180-149 and get 31.
Then you would add 31 and 99 to get 130.
Then subtract 180-130 to get x=50 because all triangles equal 180 if you add all of the angles together.
I just got 5 free points.
Answer:
The answer is A I believe
Step-by-step explanation:
Answer:
No. The margin of error only includes sampling variability.
Step-by-step explanation:
The margin of error would be considered for the sampling error
In the case when some adults does not have telephones so it is called as error selection bias this is not a sampling error
The selection bias, unresponse bias and the response would be the examples of an error but it is not a sampling errors
So there is no margin of error as it only involved the variability in the sampling
Answer:
x=-7
y=2
Step-by-step explanation:
6x+9y=-24
3y=6
therefore, 9y=18,
and 6x=-42
x=-7
y=2