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Earn +20 ptsQ: Is 5 over 1 an irrational number?
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Is the square root of 1 over 5 a real number and is it rational or irrational?
It is real and irrational.
Why is phi an irrational number?
phi = [1+sqrt(5)]/2 sqrt(5) is irrational and so phi is irrational.
Is 5 irrational?
No. 5 is not an irrational number. 5 is an integer (whole number) and all integers are rational - that is, they can be expressed as a ratio. In this case, 5/1.
Is 1 over 5 rational?
Yes. 1/5 = 0.2, which is rational*. *A irrational number is one that cannot be expressed by a quotient, or fraction, of integers;for e.g., Pi = 3.141592..., infinitely, without ever repeating a finite sequence, is a real but irrational number.
Is 82 an irrational number?
82 is not an irrational number because it can be expressed as the quotient of two integers: 82÷ 1.
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