Answer:
The solution is 
Step-by-step explanation:
We need to write everything as a power of 3.
We know that:

So

And

This following property is also important:

To solve, the first step is putting everything with the variable x on one side and everything without the variable x on the other side





This means that:



Answer
Factor 13 out of 26x+13
= 13( 2x+1)
Answer: Answers and work are all in the picture that I attached. Hope this helps
Answer:
The standard error of the sample mean is _17.677_ psi.
Step-by-step explanation:
<u>Explanation</u>:-
A random sample of n = 8 specimens is collected.
Given sample size is n = 8
Given mean of the population 'μ' = 2500 psi
standard deviation 'σ' = 50 psi
Let x⁻ is the mean of the observed sample
Standard error of the sample mean =
...(i)
Given Population of standard error (S.D) 'σ' = 50 psi
Now substitute all values in (i)

<u>Conclusion</u>:-
The standard error of the sample mean is _17.677psi.