Question

CALCULE O VALOR DAS OPERAÇOES A SEGUIR:
A)(+2,4).(-9,1)=

B)(+2,4).(-1,5)=

C)(+2/5)+(-1/3)=

D)(+4/5):(-1/2)=

E)(-5,4):(+0,O3)=

Answer 1

A)(+2,4).(-9,1)= -21,84

B)(+2,4).(-1,5)= -3,6

C)(+2/5)+(-1/3)= 1/15

D)(+4/5):(-1/2)= -8/5

E)(-5,4):(+0,O3)= -180