It isn't
No
22=4, so no, it's not an irrational number.
It isn't.
You wont be able to add a rational number and an irrational number and get a number not in a fraction ( 3 + 22/7) (21/7 + 22/7 = 43/7) So, yes as you see in the example above it made another irrational number.
No. It is a rough but rational approximation for the irrational number, pi...Which can expressed as a fraction 22/7.
-22 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
It is said to be 22/7. And it is 3.14 in decimal form. * * * * * pi is a transcendental number which is a kind of irrational number. An irrational number cannot be represented as an exact fraction.
An irrational number.
The sum of a rational and irrational number must be an irrational number.
No. The sum of an irrational number and any other [real] number is irrational.
irrational
rational * irrational = irrational.