# Is The Square Root Of 80 A Rational Number?

## Is 16 a real number?

Rational numbers include natural numbers, whole numbers, and integers.

Sixteen is natural, whole, and an integer.

Since it can also be written as the ratio 16:1 or the fraction 16/1, it is also a rational number.

It’s easy to look at a fraction and say it’s a rational number, but math has its rules..

## Is √ 3 an irrational number?

The square root of 3 is the positive real number that, when multiplied by itself, gives the number 3. The square root of 3 is an irrational number. … It is also known as Theodorus’ constant, named after Theodorus of Cyrene, who proved its irrationality.

## IS 400 a perfect square?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 400 is 20. Therefore, the square root of 400 is an integer, and as a consequence 400 is a perfect square.

## Is Square Root 16 a rational number?

Answer and Explanation: The square root of 16 is a rational number. The square root of 16 is 4, an integer. This is because 16 is a perfect square.

## Is negative square root of 81 a rational number?

Answer and Explanation: The square root of 81 is 9. This means that the square root of 81 is a rational number.

## What are factors of 80?

The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40 and 80.

## Is 90 a perfect square?

No because 90 cannot be written in the form of product of two equal numbers so it is not a perfect square. For e.g. 81 can be written in the form 9×9 hence it is a perfect square.

## Is the negative square root of 16 an irrational number?

Answer and Explanation: No, the square root of negative 16 is not a rational number. When we take the square root of a negative number we are always left with a number times…

## Is 2/3 an irrational number?

For example 3=3/1, −17, and 2/3 are rational numbers. … Most real numbers (points on the number-line) are irrational (not rational). The rational numbers are those which have repeating decimal expansions (for example 1/11=0.09090909…, and 1=1.000000…

## Is the square root of 15 a rational number?

Explanation: 15=3×5 has no square factors, so √15 cannot be simplified. It is not expressible as a rational number. It is an irrational number a little less than 4 .

## Can a square root be a rational number?

Oh no, there is always an odd exponent. So it could not have been made by squaring a rational number! This means that the value that was squared to make 2 (ie the square root of 2) cannot be a rational number. In other words, the square root of 2 is irrational.

## What is a square root of 80?

Answer and Explanation: 80 has two square roots, which are 8.944 and -8.944. However, these are only rounded values. We denote the (exact) positive square root of 80 by…

## What is the perfect square of 80?

80 has a few factors that are perfect squares, namely 1,4 and 16 . For simplifying a radical we pick the biggest: √80=√16⋅5=4√5 .

## Is 0 a rational number?

Zero Is a Rational Number As such, if the numerator is zero (0), and the denominator is any non-zero integer, the resulting quotient is itself zero.

## Is 81 a irrational number?

1 Answer. Jim G. 81 is a rational number.

## Is the square root of 10 a rational number?

The square root of 2 cannot be written as a simple fraction! And there are many more such numbers, and because they are not rational they are called Irrational….Example:NumberAs a FractionRational?−0.1−1/10Yes0.111…1/9Yes√2 (square root of 2)?NO !3 more rows

## How do you simplify the square root of 160?

Because 16 is a perfect square, we can pull it out of the square root as a 4. That will simplify down to 4√10 because there are no additional perfect square factors in 10, the resultant is simplified. Therefore √160 simplifies to 4 √10 .