A and C are rational numbers
Complete Question
The complete question is shown on the first uploaded image
Answer:
the null hypothesis is 
the alternative hypothesis is 
The test statistics is 
The p-value is 
so

Step-by-step explanation:
From the question we are told that
The population mean is 
The sample size is n= 38
The sample mean is 
The standard deviation is 
Generally the null hypothesis is 
the alternative hypothesis is 
Generally the test statistics is mathematically evaluated as

substituting values


The p-value is mathematically represented as

From the z- table

So

Answer:
The improper fraction 8/5 can be changed to the mixed number 1 3/5 by dividing the numerator (8) by the denominator (5). This gives a quotient of 1 and a remainder of 3.
Step-by-step explanation:
I'm assuming this is multiple choice and you forgot to post the answers. I'll take a guess and say it probably looks something like this:

Because you can't take the square root of a negative number without getting an imaginary result, resulting in the function having a closed domain limit.
Answer:

Step-by-step explanation:
Given: 
To solve for y, let us first isolate y on one side of the equation. We can do this by subtracting
from the left and move it to the right. We then get:

Now, we have y isolated. We now have to remove the 4 from the y. The only way to do this is divide both sides by 4. We then get our final answer:

We can clean this up by putting it in a common form, slope-intercept form:
