No. Prime numbers are positive integers, and integers are not irrational.
Sure; for example, 10 + pi is irrational, 10 - pi is irrational. Both are positive. If you add them, you get 20.
The square root of any positive, non-square number will be both real and irrational.
Positive numbers can be either rational or irrational.
If you have any positive irrational number, then its negative is also irrational.
Positive rational = 0.0000000001Positive irrational = 0.0000000001*pi
Not necessarily. Irrational numbers can be negative or positive.
Yes, as for example the square root of 2 is a positive irrational number.
No natural number is irrational.
It will be irrational.
Irrational. The square root of a positive integer is either an integer, or an irrational number.
No, no number can be both rational and irrational.