Question

pode me ajuadar????*??
???**???????​

Answer 1

Resposta:

A) 90; B) 3/8; C) 6; D) 12/5.

Explicação passo-a-passo:

A)

$3 \sqrt{100} \times \sqrt{9} = 3 \times 10 \times 3 = 90$

B)

$\frac{3}{4} \times \sqrt[5]{ \frac{1}{32} } = \frac{3}{4} \times \sqrt[5]{32 {}^{ - 1} } = \frac{3}{4} \times \sqrt[5]{32} {}^{ - 1} = \frac{3}{4} = \sqrt[5]{ {2}^{5} } {}^{ - 1} = \frac{3}{4} \times 2 {}^{ - 1} = \frac{3}{4} \times \frac{1}{2} = \frac{3}{8}$

C)

$\sqrt{100} - \sqrt{16} = 10 - 4 = 6$

D)

$\sqrt{ \frac{9}{25} } \times 4 = \frac{ \sqrt{9} }{ \sqrt{25} } \times 4 = \frac{3}{5} \times 4 = \frac{12}{5}$