Question

Ma rooog ,este urgent ​

Answer 1

Răspuns:

a) adev   a= -6+18-1= 18-7=11  

b) fals b= -8+9 + (-1)*(-5)= 1+5=6  

c) -0,25+ ( 0,5-2,5+0,2): ( -4+ 0,4)= -0,25+ (-2,3) : ( -3,6)=-0,25 +  $\frac{-23}{10}$ : $\frac{-36}{10}$=

-0,25 + $\frac{-23}{10} * \frac{-10}{36}$= -$\frac{1}{4}$ + $\frac{23}{36}$=$\frac{-9+23}{36}$= $\frac{14}{36}$= $\frac{7}{18}$  A