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

2x^3-18x factor completely

Describe how to write 3,482,000,000 in scientific notation

The total amount of energy in an object is called __________ energy. A. heat B. thermal C. temperature D. electrical ? please help fast.

How was the time period in which Freud lived significant to the shaping and sharing of his ideas? Site 1: "Sigmund Freud: A Brief Biography"

3) Which BEST describes the governor’s role in creating or amending laws in Georgia?

What is the prefix, root, and suffix of the word hypothesis?

what age do u get all your baby teeth, when do u lose all of them, and when do u have all your adult teeth grown in?

What percent of 320 is 208?

Match the terms and definitions given in the table below. A. Supportable Other scientists must be able to repeat the test and get the same results. B. Repeatab

If 24.5 ml of base are required to reach the color endpoint of an acid/base titration what volume of base is actually needed