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OverLord2011 [107]
2 years ago
3

Ellen received two points of extra credit on each of her last five tests. Write a number to show her total number of points for

extra credit.
I need aanswer
Mathematics
1 answer:
earnstyle [38]2 years ago
3 0

the answer is 10, 5 times 2

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Korey is planning to open a comic book store. He has developed the following expense breakdown for set-up and operation for the
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The total amount of cash money that Korey have is the summation of his savings and his inheritance which is equal to Korey cash = $8500 + $25,000.
To identify the amount needed to be funded by loans or investors, we need to know first the total of expenses plus set-up plus operation expenses and other expenses to operate the bookstore subtracted by his savings.

Thus, let "AL" be the amount needed through loans while letting "TE" for total expenses.

AL=TE-($8500+$25000)
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This is the equation needed to determine the amount needed.


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In the diagram below, BD is parallel to XY. What is the value of y?
tankabanditka [31]
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A group of friends has gotten very competitive with their board game nights. They have found that overall, they each have won an
Amanda [17]

Answer: \mu_x=18\text{ hours}

\sigma_x=4\text{ hours}

Step-by-step explanation:

We know that mean and standard deviation of sampling distribution is given by :-

\mu_x=\mu

\sigma_x=\dfrac{\sigma}{\sqrt{n}}

, where \mu = population mean

\sigma =Population standard deviation.

n= sample size .

In the given situation, we have

\mu=18\text{ hours}

\sigma=6\text{ hours}

n= 2

Then, the expected mean and the standard deviation of the sampling distribution will be :_

\mu_x=\mu=18\text{ hours}

\sigma_x=\dfrac{\sigma}{\sqrt{n}}=\dfrac{6}{\sqrt{2}}=4.24264068712\approx4  [Rounded to the nearest whole number]

Hence, the the expected mean and the standard deviation of the sampling distribution :

\mu_x=18\text{ hours}

\sigma_x=4\text{ hours}

7 0
2 years ago
An airplane flew at an average rate of 600 miles per hour from Tokyo to Seattle. Because of a strong headwind, the average rate
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600t = 480(18 – t) should be it

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