Question

pfvr conta montada de cada questão​

Answer 1

Resposta:

Explicação passo a passo:

4- a)

$(\frac{-1}{3}) ^{2} \\=\frac{(-1)^{2} }{3^{2} }\\=\frac{1}{9}$

$b)\ (\frac{1}{2} )^{5} \\= \frac{1^{5} }{2^{5}} \\= \frac{1}{32}$

$c) (\frac{-2}{5}) ^{4}\\= (\frac{(-2)^{4}}{5^{4}} )\\= \frac{16}{625}$

$d) (\frac{1}{3})^{1}\\= \frac{1}{3}$

5-

$a)\ \frac{20}{100} * 60 \\\\= \frac{20*60}{100} \\\\=\frac{1200}{100} \\\\= 12$

$b)\ \frac{10}{100} * 70\\\\=\frac{10*70}{100}\\\\\\=\frac{700}{100} \\\\\\=7$

$c)\ \frac{40}{100}*30\\\\= \frac{40*30}{100}\\\\= \frac{1200}{100}\\\\= 12$

$d) \frac{30}{100}*40\\\\= \frac{30*40}{100}\\\\= \frac{1200}{100}\\\\= 12$