Check my answers please

Is each number rational or irrational

1.-0.6 Rational
2.square root of 40 irrational
3.0.606606660... irrational
4.- square root of 144 rational
5.square root of 12 irrational
6. 0.203040506... irrational

3 answers

1. - 6/10 right
2. 2 sqrt 10 but sqrt 10 is 3.16227766........ right irrational
3. right
4. -12/1 yes, rational
5. 2 sqrt 3 , sqrt 3 is irrational, right
6. irrational, right

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