## anonymous 5 years ago What is the simplified form of the reciprocal of negative squaroot 48?

1. anonymous

$-\frac{1}{\sqrt{48}}$ $-\frac{1}{\sqrt{16\times 3}}$ $-\frac{1}{4\sqrt{3}}$ $-\frac{1}{4\sqrt{3}}\times \frac{\sqrt{3}}{\sqrt{3}}$

2. anonymous

$-\frac{\sqrt{3}}{12}$

3. anonymous

ur smart... i feel so dumb

4. anonymous

you get used to doing these. multiply top and bottom by radical to get it out of denominator

5. anonymous

Can you help me with this problem.... Simplify: squareroot of 0.6

6. anonymous

always look for a perfect square inside radial. $\sqrt{50}=\sqrt{25\times 2}=5\sqrt{2}$

7. anonymous

yes.

8. anonymous

$\sqrt{.6}=\sqrt{\frac{6}{10}}=\sqrt{\frac{3}{5}}$

9. anonymous

now rationalize the denominator $\frac{\sqrt{3}}{\sqrt{5}}\times\frac{\sqrt{5}}{\sqrt{5}}=\frac{\sqrt{15}}{5}$\]

10. anonymous

do you know how to solve this one? If 3x + 4y = 7 and 2x-3y=67 then which of the following is the value of xy?

11. anonymous

sure you have to solve the system and then multiply

12. anonymous

can you solve this system?

13. anonymous

wait what do you mean by solving the system and multiplying