Question

Calcule o resultado das operações abaixo.

a) ( - 25 ) : ( + 5 )
b) ( + 49 ) : ( - 7 )
c) ( - 81 ) : ( - 1 )
d) 0 : ( - 16 )
e) ( - 12 ) : ( + 3 )
f) ( - 16 ) : ( - 4 ) HELPPPPPP

Answer 1

→ Cálculo :

Regra de sinal :    

( - ) ( - ) = +  

( + ) ( + ) = +  

( - ) ( + ) = -  

( + ) ( - ) = -

A) ( - 25 ) : ( + 5 ) = -5

B) ( + 49 ) : ( - 7 ) = -7

C) ( - 81 ) : ( - 1 ) = +81

D) 0 : ( - 16 ) = +0

E) ( - 12 ) : ( + 3 ) = -4

F) ( - 16 ) : ( - 4 ) = +4