40.25 you add everything together then multiply by .6
Answer: 601
Step-by-step explanation:
When the prior estimate of population proportion is not given , the formula we apply to find sample size :

, where z* = critical z-value
E=Margin of error
Given : Margin of error = 0.04
Confidence level = 95%
We know that , according to the z-table , the critical value for 95% confidence interval = z*= 1.960
Then, the required sample size : 


Hence, the required minimum sample size = 601
Answer:
x-y=7
slope:1
y-int:(0,7)
x+y=3
slope: -1
y-int:(0,3)
hope this helps!!:)
Step-by-step explanation:
It’s c (plane) if your asking for two-dimensional set of points