Respuesta :

The answer depends on knowing that 0.4444.... is equal to 4/9; 
the square root of 4/9 is 2/3 = 0.6666....

The square root of 0.4 repeating is 0.6 repeating.

What is square root?

A value that, when multiplied by itself, yields the number is the square root of a number.

How to find the square root of 0.4 repeating?

Given number 0.4 repeating

We have to find the square root of it

Let x= 0.444 ..(1)

Multiply 10 both sides.

10x = 4.444  ..(2)

Subtract equ(1) from equ(2)

9x=4

 x=4/9

Take square root both sides

√x=2/3

   = 0.6 repeating

Hence the square root of 0.4 repeating is 0.6 repeating

Learn more about square root here: https://brainly.com/question/9423572

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