9514 1404 393
Answer:
z^(8/5)
Step-by-step explanation:
The applicable rule of exponents is ...
(a^b)^c = a^(bc)
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[tex]\displaystyle (z^{-\frac{4}{3}})^{-\frac{6}{5}}=z^{(-\frac{4}{3})(-\frac{6}{5})}=z^{\frac{24}{15}}=\boxed{z^{\frac{8}{5}}=z^{1.6}}[/tex]
