Respostas

2014-04-20T04:14:24-03:00
a) 3200 * 0,018 = 57,6 = 5,76 . 10^{1}

b)\frac{6400 * 0,04}{2000}  =  \frac{256}{2000} =  0,128 =  1,28 . 10 ^{-1}

1 5 1