Question

Resolva as expressões.

A)5- raiz quadrada 0,444...

B)0,3 . 0,3333...

Answer 1

a)
$5 - \sqrt{0.444...} = 5 - \sqrt{ \frac{4}{9} } = 5 - \frac{2}{3} = \frac{5 - 2}{3} = \frac{3}{3} = 1$
b)
$0.3 \times 0.333... = \frac{3}{10} \times \frac{3}{9} = \frac{9}{90} = \frac{1}{10}$