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

is 10 gallons greater or less than 60 quarts?

one whole and a half plus one and 8 in simplest form

Here is another for fun question. MUST SHOW ALL WORKINGS So, What is the biggest 4 digit whole number that meets the three requirements 1. the digits are differ

Two spherical balloons are filled with water. The first balloon has a radius of 3 cm, and the second has a radius of 6 cm. How much more water is in the larger

How Much Blood Does The Average Person Have In Their Body?

Which Kelvin temperature is equivalent to –24°C? (1) 226 K (3) 273 K (2) 249 K (4) 297 K

What is the number of pairs of electrons that are shared between the nitrogen atoms in a molecule of N2? (1) 1(2) 2(3) 3(4) 6

How do the citizens of Rome view Caesar at the start of Shakespeare's Julius Caesar? (Points : 3) He is loved because he is a charismatic and succ

The volume of a prism is 230 mm3. Which statements are true about the same prism measured in cubic centimeters? Choose all answers that are correct. A. The n

how did new deal programs differ from president hoovers attempts to combat the depression