No, 0.22 is not irrational because it can be expressed as a fraction in its simplest form as 11/50 and so therefore 0.22 is a rational number.
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It is irrational.
Rational
Such a sum is always irrational.
The square root of 94 is an irrational number
-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.