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Earn +20 ptsQ: Must a rational number be rational?
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The mode of a list of rational numbers must be a rational number?
false
May the sum of a rational and an irrational number only be a rational number?
No. In fact the sum of a rational and an irrational MUST be irrational.
Is 4.121314 is a rational?
No, a rational number must be a whole number, for example 40 and 5643 and 948.
Is the product of two rational numbers irrational?
The product of two rational numbers is always a rational number.
Must the difference between two rational numbers be a rational number?
Yes.
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