disombaallen disombaallen

03-11-2015
Mathematics

contestada

Simplify the radical expression by rationalizing the denominator.
4 divided by the square root of 21.

Respuesta :

03-11-2015

[tex]\frac{4}{\sqrt{21}} = \frac{4}{\sqrt{21}} \times \frac{\sqrt{21}}{\sqrt{21}} =\boxed{ \frac{4\sqrt{21}}{21}}[/tex]

Answer Link

Otras preguntas

How does Achilles die? A. The men of Troy set fire to a Greek ship with Achilles on board. B. Achilles heel is pierced by Paris's arrow. C. Aeneas defeats Achil

Which of the following is a clause? Clapping and laughing excitedly Whereas I love ice cream The captain and his rowdy crew standing To get up and go

How many children did king John have

a period of abnormally high emotion and activity is called??

In recent years, people have been motivated to move from rural areas to urban areas for __________.

if 3ax+b+c, then x equals?

You are playing an Algebra 1 board game with your friends in Mr. Harris's class. It is your turn. You roll the dice and move your token to the next box in the b

a creek runs along a distance of 16,300 feet.About how many miles long is the creek

How might Congressman Steve King respond to "Brutus'" statements on natural rights?

Jill sold half of her comic books and then bought sixteen more. She now has 36. With how many did she begin with?