13-9 =4
Step-by-step explanation:
a number is divisible by 11 if its 0 or a multiple of 11. So 52,375 is not divisible by 11
Answer:
2z - 3w = 8
Step-by-step explanation:
Where you see z you place 10 there and where you see w you place 4 there because that's the value according to the question.
So we have 2(10) - 3(4) = 20 - 12 = 8
Its division because polynomials is only with adding and subtracting
Using the z-distribution, it is found that a sample of 171 should be selected.
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:

The margin of error is:

In which:
is the sample mean.
is the standard deviation for the population.
For this problem, the parameters are:

Hence we solve for n to find the needed sample size.





n = 170.7.
Rounding up, a sample of 171 should be selected.
More can be learned about the z-distribution at brainly.com/question/25890103
#SPJ1
Answer:
1.4286 this should be your answer
Step-by-step explanation: you what is the decimal of 5/7 and 1/2 which 5/7 decimal is 0.7143 and the decimal of 1/2 is 0.5 and you then divide