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arsen [322]
4 years ago
15

Find x.

Mathematics
1 answer:
ZanzabumX [31]4 years ago
6 0

Use the Pythagorean theorem:



x^2+38^2=42^2\\\\x^2+1444=1764\ \ \ \ |-1444\\\\x^2=320\to x=\sqrt{320}



Answer:


b.\ \sqrt{320}\ or\ appx\ 17.9

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Determine the measure of each angle using the picture below. Assume the two lines are parallel.
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Answer:

Step-by-step explanation:

Angle 5 is opposite to 37 => It's equal to 37.
Angle 6 and 7 are supplementary to angle 5 => They are equal to 180 - 37 = 143 each.

Angle 4 is corresponding to Angle 7, and since the 2 lines are parallel, it's equal to 143.

Angle 1 and 3 is supplementary to Angle 4, so they are equal to 180-143 = 37 each

Angle 2 is opposite to Angle 4, so it's equal to 143.


Answer : Angle 1,3,5 = 37
Angle 2,4,6,7 = 143

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