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Which of the following is an irrational number? OA. 67 OB. 564 OC. 19 9 OD. 1.9​

User Jrc
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Answer:

D. 1.9​

Explanation:

An irrational number is a number that cannot be written as the ratio of two integers. Its decimal form does not stop and does not repeat.

User Dan Sinker
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