The square root of 9 is 3 which is a rational number
-9 is a rational number
0.4444
81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
An irrational number cannot be written as a fraction or a whole number,Like Pi for example
Rational
9 is a rational number
-9 is a rational number
They are rational.
9 is a rational number
The simplest example (of infinitely many) is probably the squareroot of two multiplied by itself equals two. Take any rational number, say 4.177 and divide it with any irrational number, say the square root of 13, and you will get a new irrational number. The product of your two irrational numbers now make a rational number.
No, it is rational.
It is a rational number as 9
Rational
0.4444
No, 9 plus pi is not a rational number. While 9 is a rational number, since it can be expressed as a fraction (9/1), pi is an irrational number, meaning it cannot be expressed as a fraction of two integers. The sum of a rational number and an irrational number is always irrational, so 9 plus pi remains irrational.
4.6 is rational.
The number has a decimal representation that terminates (after 9 digits). If it terminates, the number is rational.