 # What Kind Of Number Is 19?

## Is √ 16 an irrational number?

A rational number is defined as the number that can be expressed in the form of a quotient or division of two integers i.e., p/q, where q = 0.

So √16 is an irrational number..

## Is 72 an irrational number?

72 is not an irrational number because it can be expressed as the quotient of two integers: 72 ÷ 1.

## Is zero a whole number?

All whole numbers are integers, so since 0 is a whole number, 0 is also an integer.

## What is the square of 19?

361Note that the square of a+b is equal to a^2+2ab+b^2. If you view 19 as (10+9) then the square of it would be 10^2+2(9)(10)+9^2, which equals to 100+180+81, which is equal to 361. As the other answers have said, the answer is 361.

## Is 0.625 a rational number?

A rational number can also be expressed as either a terminating decimal or a nonterminating repeating decimal. … EXAMPLE 1 Show that the terminating decimal 0.625 is rational by writing it as the quotient of two integers.

## Is 19 a whole number?

The first 100 whole numbers are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, …

## Is 19 a irrational number?

19 is not an irrational number because it can be expressed as the quotient of two integers: 19 ÷ 1.

## How do you tell if a number is rational or irrational?

A rational number can be defined as any number that can be expressed or written in the p/q form, where ‘p’ and ‘q’ are integers and q is a non-zero number. An irrational number on the other hand cannot be expressed in p/q form and the decimal expansion of an irrational number is non-repeating and non-terminating.

## Is 19 squared a natural number?

It is an irrational number if it is not a perfect square. Since 19 is not a perfect square, it is an irrational number.

## Is 81 an irrational number?

81 is a rational number.

## Is 19 a rational number?

19 is a rational number because it can be expressed as the quotient of two integers: 19 ÷ 1.

## Is 20 rational or irrational?

Yes, 20 is a rational number. The number 20 is an integer, and we have a rule relating integers and rational numbers.

## How do you know if a number is rational or irrational?

What are rational and irrational numbers? Rational numbers are the numbers that can be expressed in the form of a ratio (P/Q & Q≠0) and irrational numbers cannot be expressed as a fraction. But both the numbers are real numbers and can be represented in a number line.

## Is negative 8 a real number?

Answer and Explanation: Negative 8, which can also be written as -8, is a rational number.

## Why is 19 100 a rational number?

A. It is the quotient of 100 divided by 19. It is the quotient of 19 divided by 100. …

## Is 0 A rational?

Yes, 0 is a rational number. Since we know, a rational number can be expressed as p/q, where p and q are integers and q is not equal to zero. Thus, we can express 0 as p/q, where p is equal to zero and q is an integer.

## Which is the smallest whole number?

The smallest whole number is “0” (ZERO).

## What is not a real number?

Imaginary numbers are numbers that cannot be quantified, like the square root of -1. The number, denoted as i, can be used for equations and formulas, but is not a real number that can be used in basic arithmetic. You cannot add or subject imaginary numbers. Another example of an imaginary number is infinity.

## Is 1.43 a rational number?

Therefore 1.43 bar can be represented in rational number as 142/99.

## Is 3.712 a rational number?

it is irrational number because number are changed after point.

## Is 19 squared rational or irrational?

19 is not a perfect square, hence its square root is an irrational number.