I need help with this problem:

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

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- Sep 9th 2008, 01:12 PMcecij22Help with radical expression!!!
I need help with this problem:

(sqroot 5)*(sqroot .0025)/(sqroot .0009) - Sep 9th 2008, 01:15 PMMatt Westwood
$\displaystyle \frac {\sqrt 5 \sqrt{.0025}}{\sqrt {.0009}}$

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

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

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

... I think. - Sep 9th 2008, 01:17 PMShyam
- Sep 9th 2008, 02:15 PMcecij22
Wouldn't the $\displaystyle \sqrt{5}$ also get multiplied by 100 when you multiply to get rid of the decimal points?

- Sep 9th 2008, 02:19 PM11rdc11
yes

- Sep 9th 2008, 02:28 PMMatt Westwood
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. - Sep 9th 2008, 02:33 PM11rdc11
oops thanks for pointing that out

- Sep 10th 2008, 06:31 AMcecij22
Ohhhh...I get it. Thank you everyone for all your help.