The number 19, like all integers, is a rational number. Only certain types of decimal expansions can be irrational.
No because 1.9 can be expressed as a fraction if need be and so therefore it is a rational number
No. It's the ratio of 19 to 10 ... a perfectly rational number.
4.01234567891011121314... keep appending the next counting number on the end {15, 16, 17, 18, 19, 20, ...} and you will have an irrational number between 4 and 5.
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.
it is a rational number but 4.121314..... is an irrational no
It is an irrational number.
An irrational number.
The square root of the prime number 19 is an irrational number
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
It is a whole number so it is rational.
No. 19 is a prime number, and all prime numbers have irrational roots.
None of them because they are all rational numbers but 19 is a prime number.
It is a whole number so it is rational.
18 and 20
1.2667
-19 is a rational number, since it can be expressed in fraction form (-19/1).
No because 19 is a whole number which means that it is a rational number