cube root on both sides then subtract 7
answer would be (cube rooted)A-7=Z if that makes sense
Answer:
I think it would be C in my cass
Step-by-step explanation:
Using the z-distribution, as we have the standard deviation for the population, it is found that the smallest sample size required to obtain the desired margin of error is of 77.
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:

In which:
is the sample mean.
is the standard deviation for the population.
The margin of error is given by:

In this problem, we have that the parameters are given as follows:
.
Hence, solving for n, we find the sample size.






Rounding up, the smallest sample size required to obtain the desired margin of error is of 77.
More can be learned about the z-distribution at brainly.com/question/25890103
An expression equivalent to that given would be 4^8 or also written as four to the eighth power, hope this helped! Please rate my answers.
Work: 4^8 = 4x4x4x4x4x4x4x4
3/4 - 4 z + 5/4 z - 1/2 + 1/2 z
First, put the like terms together:
-4z + 5/4z + 1/2z + 3/4 - 1/2
Find the LCM of the first three to turn them into one massive fraction:
-16/4z + 5/4z + 2/4z + 3/4 - 1/2
Do the same for the last 2 fractions:
-16/4z + 5/4z + 2/4z + 3/4 - 2/4
Simplify everything (keeping like terms in mind)
-9/4z + 1/4
And that's the answer :)
(I think)