3 years ago

Find x.

1 answer:

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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