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Mathematics, 21.09.2021 16:10 animeisstupid6

Mark says, '81 is a square number. Therefore, 810 is a square number.'
Is Mark correct? Explain your answer.
b) Anthony says the answer to (-10) is 1000
Anthony is not correct.
Explain why.

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Mark says, '81 is a square number. Therefore, 810 is a square number.'
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