## Mindblast3r one year ago help pls

1. anonymous

with?

2. mindblast3r

$r^2=\frac{ 9 }{ 2 }$

3. mindblast3r

$r=\frac{ 3\sqrt{2} }{ 2 }$

4. mindblast3r

how does the $\frac{ 9 }{ 2 }$

5. mindblast3r

turn into $\frac{ 3\sqrt{2} }{ 2 }$

6. anonymous

because 3 goes into 9 2 times so 2 is the square root of 3 and 9 and then the denominator stays the same

7. ParthKohli

$r^2 = \frac{9}{2}$$\Rightarrow r^2 = 9 \cdot \frac{1}{2}$$\Rightarrow r = \sqrt 9 \cdot \sqrt{\frac{1}{2}}$$\Rightarrow r = 3 \cdot \frac{1}{\sqrt2}= 3 \cdot \frac{\sqrt 2}{\sqrt 2 \cdot \sqrt 2} = \frac{3\sqrt 2}{2}$

8. anonymous

at least thats what i get out of it thats what it looks like to me

9. mindblast3r

oh!!! I get it now! Thank you soo much!! I've been stuck on that forever!