No. √19 is an irrational number.
Yes
It is a rational number because it can be expressed as a fraction in the form of -19/1
1.2667
18 and 20
The square root of the prime number 19 is an irrational number
No. √19 is an irrational number.
Yes, they are.
Yes
rational
-19 is a rational number, since it can be expressed in fraction form (-19/1).
It is a rational number because it can be expressed as a fraction in the form of -19/1
It is a whole number so it is rational.
1.2667
18 and 20
Yes- it amounts to roughly 4.358898944
No. 19 is a prime number, and all prime numbers have irrational roots.