Question

Ajuda aew

O valor de de (0,666...)x(0,666...) + (0,333...)x(0,333...) é igual a :
a- 0,111...
b-0,222...
c-0,333...
d-0,444...
e-0,555

Answer 1

0.6666... = 2/3
0.3333... = 1/3

Logo, temos que:
(2/3)*(2/3) + (1/3)*(1/3) =
(4/9) + (1/9) =
(5/9) =
0.5555...

Resposta: E

Answer 2

0,666...$\frac{6}{9}= \frac{2}{3}$

0,333..=$\frac{3}{9}= \frac{1}{3}$

(0,66...)(0,666)+(0,33...)(0,333..)=

($\frac{2}{3}. \frac{2}{3}$)+($\frac{1}{3} . \frac{1}{9}$=
$\frac{4}{9}$+$\frac{1}{9}$=
$\frac{5}{9}$= 0,55555......
item E