Question

calcule ................

Answer 1

A)

$\sqrt{0.36}$

$\sqrt{(0.6 ){}^{2} }$

$0.6$

B)

$\sqrt[3]{8} + \sqrt{16} - ( - 7) {}^{2}$

$2 + 4 - 49$

$6 - 49$

$- 43$

C)

$\sqrt{ \dfrac{64}{225} }$

$\sqrt{ \dfrac{8 {}^{2} }{15 {}^{2} } }$

$\dfrac{8}{15}$

Answer 2

Explicação passo-a-passo:

$a) \sqrt{0.36} = \sqrt{ \frac{36}{100} } = \frac{ \sqrt{36} }{ \sqrt{100} } = \frac{6}{10} = \frac{3}{5}$= 0,6

$b) \sqrt[3]{8} + \sqrt{16} - ( - 7) {}^{2} = 2 + 4 - 49 = 6 - 49 = - 43$

$c) \sqrt{ \frac{64}{225} } = \frac{ \sqrt{64} }{ \sqrt{225} } = \frac{8}{15}$