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Earn +20 ptsQ: Is the number 63.4 a rational number?
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Is .634 rational?
Yes, .634 is a rational number
How can you prove that 6.34 is a rational number?
(A): 6.34*100 = 634 so 6.34 = 634/100 a ratio of two integers and so a rational number. (B): 6.34 is a terminating decimal - with two non-zero digits after the decimal point. So again, it is a rational number.
Is .634 an irrational number?
No.
Is a rational number always a rational number?
As much as, in these days of uncertainty, anything can be anything. As long as the constraints of a rational number are kept to, a rational number will always remain a rational number.
Is the sum of a rational number and a rational number rational?
Yes.
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