Question

expressão numérica 1000 x 20, 12 x 2,012 x 100
e igual a:


a) (2012)


b) (20,12)


c) (201,2)


d) (2,012)


e) (20120)

Answer 1

Resposta:

A)

(2012)^2

Explicação passo a passo:

Expressão numérica :

= 1000 x 20, 12 x 2,012 x 100

= 10^3 . 20,12 × 2,012 . 10^2

= 10^5 . 2,012 . 10 . 2,012

(2,012)^2 . 10^6

(2,012)^2 . (10^3)^2

= (2,012.10^3)^2

= [2012.10^(-3).10^3]^2

= (2012)^2

R.: a)