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

The egg cell of a cat has 19 chromosomes. A whisker cell of a cat has _____. 19 chromosomes 23 chromosomes 38 chromsomes 46 chromosomes

What body of water stretches from north and south america westward to australia and the eastern coast of aisa?

When astronauts travel to the moon, their bodies experience a lower gravitational pull than on Earth. Which type of pull are they experiencing?

Two carts collide and bounce apart. Cart 1 had a momentum of –6 kg • m/s before the collision. Cart 2 had a momentum of 10 kg • m/s before the collision. What

the system of exchanging goods without the use of money is called

BEST ANSWER GETS TO BE BRAINLYEST!!!!! Vincent started the year with $160 in his account at the health spa. Each time he uses the spa, $14 is taken out of the a

If the mass of a proton is 2.34 × 10–14 grams, what is the mass of 1,000 protons? 2.34 × 10–11 g 2.34 × 10–13 g 2.34 × 10–12 g 2.34 × 10–17 g

Which synonym puts someone who talks too much in the most positive light?

Let f(x) = x − 2 and g(x) = x2 − 7x − 9. Find f(g(−1)).

What are the four body openings in which HIV can be transferred through?