Answer: what do you need help with
Explanation: you never posted a problem
Answer:
it is d
Step-by-step explanation:
Answer:
Alright solve for x by simplifying both sides of the equation, then isolating the variable
x = - 13/4 Hope this helps :)
Step-by-step explanation:
Answer:
sample standard deviation is $50
Step-by-step explanation:
Given a population standard deviation of $500 and a random sample of size, n=100.
-The sample standard deviation is calculated using the formula:
![s=\sigma/\sqrt{n}](https://tex.z-dn.net/?f=s%3D%5Csigma%2F%5Csqrt%7Bn%7D)
Where:
is the sample standard deviation.
is the sample size.
is the population standard deviation
Therefore:
![s=\sigma/\sqrt{n}\\\\=500\sqrt{100}\\\\=50](https://tex.z-dn.net/?f=s%3D%5Csigma%2F%5Csqrt%7Bn%7D%5C%5C%5C%5C%3D500%5Csqrt%7B100%7D%5C%5C%5C%5C%3D50)
Hence, the sampling distribution has a mean of $1,500 and a standard deviation of $50
You missed a small portion of the question in the end. If I am not mistaken, I am able to find the complete question which you should have added. Anyways, this would help you clear your concept as I would explain the context.
Here is the complete question:
<em>Tanya is printing a report. There are 92 sheets of paper in the printer, and the number of sheets of paper p left after t minutes of printing is given by the function p(t) = -8t + 92. </em>
<em>How many minutes would it take the printer to use all 92 sheets of paper?</em>
<em />
Answer:
It would take 11.5 minutes for the printer to use all 92 sheets of paper
Step-by-step explanation:
Given:
- Tanya is printing a report. There are 92 sheets of paper in the printer, and the number of sheets of paper p left after t minutes of printing is given by the function p(t) = −8t + 92
To determine:
How many minutes would it take the printer to use all 92 sheets of paper?
Given the function
![p(t) = -8t + 92](https://tex.z-dn.net/?f=p%28t%29%20%3D%20-8t%20%2B%2092)
We know that when all the 92 sheets of paper will be printed, there will be no more sheets left to be printed.
Therefore, we need to substitute p(t) = 0 in the given function to determine the value of time in minutes
![0 = -8t + 92](https://tex.z-dn.net/?f=0%20%3D%20-8t%20%2B%2092)
![8t = 92](https://tex.z-dn.net/?f=8t%20%3D%2092)
Divide both sides by 8
![\frac{8t}{8}=\frac{92}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B8t%7D%7B8%7D%3D%5Cfrac%7B92%7D%7B8%7D)
![t=\frac{23}{2}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B23%7D%7B2%7D)
minutes
- Therefore, it would take 11.5 minutes for the printer to use all 92 sheets of paper