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No - numbers are neither irrational nor rational.
Ans 2
Well, it is true that 21 is not irrational.
As to being rational, every integer is rational.
Proof : Take an integer n, add it to itself.
Now look at (n+n)/2. It is obviously rational, but equally obviously it reduces to n.
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Is the square root of 21 a rational number?
No. The square root of an integer is either an integer, or an irrational number.
Can Adding a rational number to an irrational number give you an irrational number?
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.
Which number produces an irrational number when multiplied by?
At least one of the factors has to be irrational.* An irrational number times ANY number (except zero) is irrational. * The product of two irrational numbers can be either rational or irrational.
Is 4.121314 is a rational number or irrational?
it is a rational number but 4.121314..... is an irrational no
What is an irrational number minus a rational number?
It is an irrational number.
Is 21 a rational or irrational number?
21 is a rational number.
Is the square root of 21 an irrational or a rational number?
irrational
Is the square root of 21 a rational number?
No. The square root of an integer is either an integer, or an irrational number.
Is 21 over the square root of 4 a rational or irrational?
It is equal to 21/2 which is a rational number
Is the square root of 21 a real number?
Yes, albeit an irrational number
Is the ratio 21 an integer or an irrational number?
21 is an integer which is also a rational number because it can be expressed as a fraction in the form of 21/1
What is and irrational number between 4.5 and 4.6?
the square root of 21
Is 21 over 3 a rational or irrational number?
21/3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Can Adding a rational number to an irrational number give you an irrational number?
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.
What is an irrational number between 4.5 and 4.6?
the square root of 21
Is the square root of 5 and squa re root of 21 irrational?
Yes. The square root of a natural number (positive integer) is either an integer, or an irrational number.
Is 4.2 an irrational or rational number?
It is rational because it can be expressed as a fraction which is 21/5
