## calculusxy one year ago @ospreytriple

1. anonymous

Hi.

2. calculusxy

$\huge \frac{ \sqrt5 }{ m } = \frac{ m }{ \sqrt20 }$

3. calculusxy

find the value of m

4. anonymous

OK. Here's the way I look at this. You can't solve for m while it's in the denominator. What mathematical operation could you perform to get rid of the m in the denominator on the left hand side.

5. calculusxy

can you multiply it ?

6. anonymous

Exactly. Multiply both sides by m. Then what will it look like?

7. calculusxy

$\sqrt5 = \frac{ m^2 }{ \sqrt20 } => \sqrt{100} = m^2 => m = 10$

8. anonymous

You're very good. Well done!

9. calculusxy

thank u! i need help on two other.. can u still bear with me?

10. anonymous

Oops. Wait one second. There might be a small boo boo in your answer.

11. anonymous

$\sqrt{5} = \frac{ m^2 }{ \sqrt{20} }$$m^2 = \sqrt{100} = 10$Solve for m.

12. calculusxy

oh so you word need to find the sqrt of 10?

13. calculusxy

*word => need

14. anonymous

That's right.

15. anonymous

So the answer would have to be$m=\pm \sqrt{10}$

16. anonymous

OK?

17. calculusxy

yes thx :)

18. anonymous

Great. I have to run along now. Good luck. It's been great working with you!