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How do you decide if a decimal is a rational​ number?

A. Check whether the decimal never terminates nor repeats.
B. All decimals are irrational numbers.
C. Check whether the decimal terminates in 0s or repeats.
D. All decimals are rational numbers

1 Answer

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A. if it repeats it is irrational if it terminates it is rational

User Enrico Pirani
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