what is 20 divided by square root 15?

Question

it is a math problem

Answer 1

20/√15 = 5.163977794943222 which is approximately 5.164

(20/√15)² = 400/15 = 80/3 = 26.667 => √26.667 is approximately 5.164

 

Hope this helped.

Answer 2

To rationalize the denominator, Multiply and divide by it. Then reduce to lowest terms.

20/√15 = (20√15) / (√15)² = (20√15)/15 = (4√15)/3