Question

alguém aiiii ajuda??​

Answer 1

Resposta:

b)37
c)≅7,8
d)13,5
e)46

Explicação passo a passo:

b)
12+[35-(10+2)+2]
12+[35-12+2]
12+[35-10]
12+25=37

c)
[(18+3.2)+8+5.3] : 6
[(18+6)+8+15] : 6
[24+8+15] : 6
[32+15] : 6
47 : 6≅7,8

d)
[-1+(2²-5.6)] : (-5+2)+1
[-1+(4-30)] : -3+1
[-1+-26] : -2
-1+-26 : -2
-27 : -2 = 13,5

e)
$\sqrt{64}$+(4³ : 2 - (5²+2⁵-1⁵)=
8+[4.4.4 : 2 - 5.5+2.2.2.2.2+(-1.-1.-1.-1.-1)]
8+[ 16.4 : 2 - 25+32+(-1) ]
8+[ 16.2-25+31]
8+32-25+31
40+6 =46