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

Simplify: (3/5)^4 × (8/5)^-12 × (32/5)^6

How many elements are in a 9 x 3 matrix?

What is the recommended amount of daily exercise? A. 30 minutes B. 35 minutes C.45 minutes D.60 minutes

ignore the selected one

please help !! i’m struggling

A car was bought for £18000. Its value depreciated by 15% each year for the first three years. What was its value at the end of the three years?

A girl is sitting in such a place that even if she gets up and leaves you won't be able to sit there. Where is she sitting?

what are the best questions to ask to determine the author’s viewpoint? select three options.

The Divine Right to Occupy the Land audience The Bible says: “I will appoint a place for my people Israel, and I will plant them, that they may dwell in a plac

Complete the table to determine the amount of money that gabriella would recieve in exchange for 200 u.s dollars in each country