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Svet_ta [14]
3 years ago
7

Please Help i dont understand this :( Look at the screenshot/picture Please and Thank you so much! <3 :)

Mathematics
1 answer:
bazaltina [42]3 years ago
8 0

Answer:

b=25 a=4.582575695

Step-by-step explanation: 3^2=9 5^2=25 square root of 21=4.582575695

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Step-by-Step Explanation:

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