Answer:
Step-by-step explanation:
[tex]a^{-m}=(\frac{1}{a})^{m}\\\\\\1)7^{-2}=(\frac{1}{7})^{2}\\\\\\2)(\frac{2}{3})^{-3}=(\frac{1}{\frac{2}{3}})^{3}\\\\=(\frac{3}{2})^{3}[/tex]
1) D.
2) A
Step-by-step Explanation:
1) [tex]7^{-2}[/tex]
= [tex](\frac{1}{7})^2[/tex]
2) [tex](\frac{2}{3})^{-3}[/tex]
= [tex](\frac{3}{2})^{3}[/tex]
