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Artist 52 [7]
3 years ago
11

What is the value of X?

Mathematics
1 answer:
zepelin [54]3 years ago
3 0
The 3 inside angles of a triangle need to equal 180 degrees.

 The angle below the 100 degrees would be 180-100 = 80 degrees.

Now you have 80 and 70, which equals 150 degrees.

 Angle X = 180 -150 = 30 degrees

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Read 2 more answers
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<em>  </em>

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<em>  </em>

<em>This is a binomial expansion in y, and you want the coefficient of y4 because y4=x8 </em>

<em>  </em>

<em>You have 7 terms of (y-3) in (y-3)7.  To get the fourth power of y, you need to choose y from four of the terms.  The number of ways you can do this is the combinations of 7 things taken 4 at a time.  This is: </em>

<em>  </em>

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<em />

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