1. ## Help with radical expression!!!

I need help with this problem:

(sqroot 5)*(sqroot .0025)/(sqroot .0009)

2. $\displaystyle \frac {\sqrt 5 \sqrt{.0025}}{\sqrt {.0009}}$

$\displaystyle = \sqrt {\frac {5 \times .0025}{.0009}}$

$\displaystyle = \sqrt {\frac {5 \times 25}{9}}$

$\displaystyle = \sqrt 5 {\frac {5}{3}}$

... I think.

3. Originally Posted by cecij22
I need help with this problem:

(sqroot 5)*(sqroot .0025)/(sqroot .0009)
$\displaystyle =\frac{\sqrt{5}\times \sqrt{0.0025}}{\sqrt{0.0009}}$

$\displaystyle =\frac{\sqrt{5}\times 0.05}{0.03}$

$\displaystyle =\frac{\sqrt{5}\times 5}{3}$

$\displaystyle =\frac{5\sqrt{5}}{3}$

4. Wouldn't the $\displaystyle \sqrt{5}$ also get multiplied by 100 when you multiply to get rid of the decimal points?

5. yes

6. No

$\displaystyle \frac {\sqrt 5 \times 0.05}{0.03} = \frac {\sqrt 5 \times 5 \times 0.01}{3 \times 0.01}$

You only got one 0.01 on top and bottom to cancel with each other.

7. oops thanks for pointing that out

8. Ohhhh...I get it. Thank you everyone for all your help.