• Matéria: Matemática
  • Autor: tutizera204
  • Perguntado 4 anos atrás

a) 21 : 3 – 4 . ( - 3 )
b) 32 : ( -5 – 3 ) – ( + 14 )
c) ( -6 ) . ( + 5 ) – ( + 8 ) : ( - 4 ) d) ( -9 ) : ( -9 ) + ( -6 ) . ( -1 ) . ( + 8 )
e) ( - 6 )2 – ( + 5 )3
f) ( + 5 ) . ( - 3 ) + ( - 4 )0 – ( - 1 )12

Respostas

respondido por: mariaestefanilopeswi
1

a) 21 : 3 – 4 . ( - 3 )= 19

21:3= 7

-4.-3= + 12

7+12=19  

b) 32 : ( -5 – 3 ) – ( + 14 )= -18

32 : ( -5 – 3 )= 32: (-8)= -4

– ( + 14 )= -14

-4-14= –18

c) ( -6 ) . ( + 5 ) – ( + 8 ) : ( - 4 ) = -2

( -6 ) . ( + 5 )= -30

( + 8 ) : ( - 4 )= -2

-30-2= -32

d) ( -9 ) : ( -9 ) + ( -6 ) . ( -1 ) . ( + 8 )= 48

( -9 ) : ( -9 )= 1

( -6 ) . ( -1 ) . ( + 8 )= +6.(+8)= 48

e) ( - 6 )2 – ( + 5 )3= -89

( - 6 )2= -6.-6= 36

– ( + 5 )3= -5.-5.-5= -125

36-125= -89

f) ( + 5 ) . ( - 3 ) + ( - 4 )0 – ( - 1 )12 = -13

( + 5 ) . ( - 3 ) =-15

( - 4 )0= 1

– ( - 1 )12= -(-1)= 1

-15+1= -14+1= -13


tutizera204: muito obrigadoooooo
mariaestefanilopeswi: <3
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