## anonymous 5 years ago How to evaluate (3^-3+3^-4)/3^-5

1. anonymous

$\frac{3^{-3}+3^{-4}}{3^{-5}}$?

2. anonymous

yes

3. anonymous

probably simplest to break it into two fractions $\frac{3^{-3}}{3^{-5}}+\frac{3^{-4}}{x^{-5}}$

4. anonymous

Where x is 3.

5. anonymous

oh, okay let me try breaking it up

6. anonymous

So it's 12. Thanks!

7. anonymous

when you divide if the bases are the same you subtract the exponents. be careful when you subtract, because you are subtracting a Negative number. $\frac{3^{-3}}{3^{-5}}=3^{-3-(-5)}=3^{-3+5}=3^2$

8. anonymous

12 is correct. Yes.

9. anonymous

yes it is 12. good work

10. anonymous

hello polpak!

11. anonymous

$\color{green}{\text{hello polpak}}$

12. anonymous

Hello there.

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