Answer:
2
Step-by-step explanation:
n = - 10
6n + 40 = 2n ( subtract 2n from both sides of the equation )
4n + 40 = 0 ( subtract 40 from both sides )
4n = - 40 ( divide both sides by 4 )
n =
= - 10
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:
3:2 and 21:14
Step-by-step explanation:
The same side on the larger and smaller cylinders is 30 and 20 respectively or 18 to 12
Simplify:
30:20 => 3:2
18:12 => 3:2
Therefore, the answer is 3:2
However, in addition you can multiply 3 by 7 to get 21 and 2 by 7 to get 14, so 21:14 also works