Question

Determine whether the number is rational or irrational. Explain.

Answer 1

\[\sqrt{20}\]

Answer 2

@jabez177

Answer 3

I think the number 20 is irrational because 20 is not a perfect square.

Answer 4

@RhondaSommer

Answer 5

well, whats the definition of rational?

Answer 6

The square root of any number that is not a perfect square is irrational.

Answer 7

thats not what i asked though

Answer 8

what is the definition of rational.

Answer 9

A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1.

Answer 10

@Loser66

Answer 11

Nevermind it's irrational.

Answer 12

how about "explain" part?

Answer 13

The square root of 20 is irrational because it can't be written as a fraction or decimal.

Answer 14

*ratio

Answer 15

You need prove it.

Answer 16

Well the square root of 20 is 4.472135955 and this can't be written as a ratio or fraction.

Answer 17

What grade are you?

Answer 18

gj