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Andrei [34K]
3 years ago
10

What operation does the bar between the numerator and denominator of a fraction represent?

Mathematics
1 answer:
atroni [7]3 years ago
6 0
The bar between the numerator and denominator of a fraction represent division.
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Find the MAD for this set of data.
Nostrana [21]

Answer:

Hence MAD=0.8

Step-by-step explanation:

<u>MAD-</u>

MAD is also known as Mean Absolute Deviation.

We find MAD by the following steps:

  • Firstly we find the mean of the data
  • Then we subtract each entry from the mean to obtain the deviation
  • Then find the absolute value of the deviation which is also known as absolute deviation.
  • Finally we find the mean of the absolute deviation.

Now we are given a table of the absolute deviation we just need to calculate the mean of the absolute deviation.

The absolute deviation is given as:

1    3    1    0    0    1    0    0    1    1

The mean of this is calculated as:

\dfrac{1+3+1+0+0+1+0+0+1+1}{10}=\dfrac{8}{10}=0.8

Hence, MAD=0.8




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3 years ago
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Ksenya-84 [330]
9/xy + x^2/y =  (9+x^3)/xy
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How to come out as bi at 14<br> Please help i need to know
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Answer:

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x = -7/5

Step-by-step explanation:

If we square both sides of the equation, we get:

\sqrt{x^2-3x-6}=x-1\\ (\sqrt{x^2-3x-6})^2=(x-1)^2\\x^2-3x-6=x^2-2x+1\\

Then, solving for x, we get:

x^2-3x-6=x^2-2x+1\\-3x-6=2x+1\\-6-1=2x+3x\\-7=5x\\\frac{-7}{5}=x

So, x is equal to -7/5

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3 years ago
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