Answer:
y = 3x + 9
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c
Given
- 6x + 2y = 18 ( add 6x to both sides )
2y = 6x + 18 ( divide all terms by 2 )
y = 3x + 9 ← in slope- intercept form
Answer:
c) .22
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.
In this question:

Then



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Answer:
what is the question?????????????