Answer:
the slope is
3
- ----
2
Step-by-step explanation:
IDK, but this is the correct answer, may i please have brainliest
Answer: all the ones that do not have a negative sign in front easy.
answer is b.Step-by-step explanation:
Answer:
( -1,2)
Step-by-step explanation:
The solution is where the two lines intersect
The intersect at x=-1 and y=2
( -1,2)
Answer:
The margin of error for a 99% confidence interval for the population mean is 1.8025.
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 problem:

So

The margin of error for a 99% confidence interval for the population mean is 1.8025.