Respostas

2014-05-22T13:21:54-03:00
A. 

0,3 = 3/10^-1 = 10/3

B. 

3^-1 = 1/3

C.  = -5/4

D.  = -1/2^4 = 1/32

E.   = 1/2^4 = 1/32