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26-01-2021
Mathematics

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Plsssss helpppp!!!!!

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s689012 s689012

26-01-2021

Answer:

x = 19.42

Step-by-step explanation:

8²+x²=21²

64+x²=441

-64 -64

x²=377

x=19.41648784

rounded is 19.42

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