Step-by-step explanation:
6x+17×+19ײ
______________
2×+3
23×+19ײ
__________
2x+3
Answer:C. (4,5)
Step-by-step explanation:
The first equation can be simplified to y=1/2x +3.
Answer:
We need a sample size of at least 170.
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 M as such

In which
is the standard deviation of the population(square root of the variance) and n is the size of the sample.
How large of a sample would be required in order to estimate the mean per capita income at the 80%80% level of confidence with an error of at most $0.52$ 0.52?
A sample size of at least n, in which n is found when 
So






Rounding up
We need a sample size of at least 170.
-7y+4 is the answer.................
Answer:
Slope = 2
Step-by-step explanation:
Slope is the change in y/change in x. So (8-4)/4-2)=2.