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arsen [322]
3 years ago
15

Find x.

Mathematics
1 answer:
ZanzabumX [31]3 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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