Question

1- Dados os números x = 3,5.10 -5 . 4.10-5, y = 1,1 . 10-9 e z = 17.10-9

Answer 1

Resolve primeiro as multiplicacoes
X=3,5.10-5×4.10-5
X=35-5.4.10-5
X=35-5.40-5
X=35-200-5
X=-170
Y=1,1.10-9
Y=11-9
Y=2
Z=17.10-9
Z=170-9
Z=161