disombaallen
disombaallen disombaallen
  • 03-11-2015
  • Mathematics
contestada

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

Respuesta :

TSO
TSO TSO
  • 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

7/8 divided by 2/3 is
Read the quote from Senator Henry Cabot Lodge. The United States assumes no obligation to preserve the territorial integrity or political independence of any
One goal of scientists is to assign every organism a universally accepted name according to the system known as A. traditional classification. B. the three dom
a tiny leaf-like structure inside a seed is a ________?
Nonverbal communication is tied to _______________. a. constructs b. integration c. culture d. multiple channels
A doorknob is an example of which simple machine? a. lever b. pulley c. inclined plane d. wheel and axle
Should cars be banned down highstreets?
Which formula should be used to find the area of a house shaped figure
Which crisis can be improved by selective breeding? A) famine B) pollution C) global warming D) overpopulation
What is the equivalent fraction of 4/5