Answer:
i honestly dont know this but im guessing its about 12th grade work.
15^2 + 7^2 = 225 + 45 = 274
WX = √274 = 16.55
Answer
WX = 16.55 units

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
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First we need to find the the answer to both the square root of 49 and 9.
The "square root" is a term referring to a number, multiplied by itself (x • x) would be = to your square root.
So for example: Square root of 16 = 4 because 4*4=16
So lets get out numbers:


Now you multiply 3*7 (or 7*3) and you get 21.
Final answer: 21