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Alchen [17]
3 years ago
10

X-5/x=8/x+9 what’s the answer?

Mathematics
1 answer:
frozen [14]3 years ago
7 0
First, you move all the numerators above the common denominator. So, x-5/x - 8/x = 9. Then calculate x-5-8/x = 9. Multiple both sides of x, and you will get x-13/x = 9. Then, you move the terms so it will be x-13=9x. Finally solve the equation. So, it is -8x=13. And the final answer is -1.625 or you can leave it as -13/8.
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A sample with mean of 85 and SD of 12 is transformed into z-scores. After the transformation, what are the values for the mean a
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Answer:

The value remain unchanged.

Step-by-step explanation:

By Z score, we mean:

Z = \frac{x-\mu}{\sigma}, if we substitute the given values of mean and standard deviation, we obtain the z score value. That is,

Z =  \frac{85 - 0}{12} = 85/12 = 7.083333.

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3 0
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Read 2 more answers
Helppppp with this. What do I have to do?
vaieri [72.5K]

You need to use the grids to draw rectangles which meet the requirements to help you put the answers in on the right.


1) Short side of 7 and long side of 9.

2) Short side of 9 and long side of 10.

3) Short side of 3 and long side of 8.

4) Short side of 4 and long side of 9.

5) Short side of 3 and long side of 5.

6) Short side of 6 and long side of 8.

7) Short side of 1 and long side of 2

8) Both sides 10 (this is technically a square).

9) Short side of 6 and long side of 9.

10) Short side of 7 and long side of 8.

11) Short side of 2 and long side of 3.

12) Short side of 6 and long side of 9.


You can draw these a few different ways to still get a correct result, so above are just one way of doing it.

5 0
3 years ago
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