Because no two integer numbers divide to make the number "square root of 7".
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The square root of any positive integer can only be a WHOLE NUMBER or IRRATIONAL, so the square root of 7 is irrational.On the other hand, the sum of a rational and an irrational number is always irrational.
Yes.irrational
the square root of 3, the square root of 5, the square root of 6, the square root of 7, the square root of 8 etc
The square root of 94 is an irrational number
The square root of 49 is 7, so it is rational.