In each case, state whether the following numbers are rational or irrational.

Examine, whether the following numbers are rational or irrational: sqrt5

Examine, whether the following numbers are rational or irrational: sqrt9

Examine, whether the following numbers are rational or irrational: 4.2576

Examine, whether the following numbers are rational or irrational: sqrt45

Examine, whether the following numbers are rational or irrational: sqrt6-2

Examine, whether the following numbers are rational or irrational: -sqrt81

Examine, whether the following numbers are rational or irrational: 2.131331333

Examine, whether the following numbers are rational or irrational: 5.040040004

Examine, whether the following numbers are rational or irrational: 2.346464646

Examine, whether the following numbers are rational or irrational: (i) 0. 3796 (ii) 7. 478478....... (iii) 1.101001000100001