Answer:
Following are the responses to the given question:
Step-by-step explanation:
Level of Significance,
Sample Size, 
Sample Proportion, 
![z -value = Z_{\frac{\alpha}{2}} = 1.960 \ \ [excel formula =NORMSINV(\frac{\alpha}{2})]](https://tex.z-dn.net/?f=z%20-value%20%3D%20%20%20Z_%7B%5Cfrac%7B%5Calpha%7D%7B2%7D%7D%20%3D%20%201.960%20%20%5C%20%5C%20%20%5Bexcel%20formula%20%3DNORMSINV%28%5Cfrac%7B%5Calpha%7D%7B2%7D%29%5D)
Standard Error
margin of error 
When 
Confidence Interval
Interval Lower Limit
Interval Upper Limit 
Answer:
C. x + 2y = 10
-4x - y = 2
Step-by-step explanation:
A. quickest way is to plug in -2, 6 and see which one works
B. this is the other way
1. x + 2y = 10
-4x - y = 2
2. multiply 4 with x + 2y = 10 so i can get 4x + 8y = 40
i want +4x so i can cancel with the -4x in -4x - y = 2
3.
4x + 8y = 40
-4x - y = 2
--------------------
7y = 42
y = 6
4. then plug in 6 into an equation to get x
-4x - y = 2
-4x -6 = 2
-4x = 8
x = -2
Exact form is x = 86/11
Mixed number form is x = 7 whole number 9/11
Step-by-step explanation:
Hey there!
<em>See </em><em>explanation</em><em> </em><em>on </em><em>picture</em><em>.</em>
<em><u>Hope </u></em><em><u>it </u></em><em><u>helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
