Question

gente preciso muito disso com os cálculos pfvr​

Answer 1

Resposta:

1) (10 – 4) – (9 – 8) + 3

6 – 1 + 3

5 + 3

8

2)

* 15² = 225

* 2 x 15 = 30

* 8³ = 8 x 8 x 8 = 512

* 3 x 8 = 24

3)

${( - \frac{2}{3}) }^{ - 2} \\ {( - \frac{3}{2}) }^{2} \\ ( - \frac{3}{2} ) \times ( - \frac{3}{2} ) = + \frac{9}{4}$

Letra C

4)

$\frac{ {4}^{( {4}^{2}) } }{ {4}^{4} } = \frac{ {4}^{4 \times 4} }{ {4}^{4} } = \frac{ {4}^{16} }{ {4}^{4} } = {4}^{16 - 4} = {4}^{12}$

Letra D

5)

$a) \sqrt{4} = 2 \\ b) \sqrt{9} = 3 \\ c) \sqrt[3]{8} = 2 \\ d) \sqrt{8} = 2.82$

letra D