A=2xy+2xz+2yz
a=2(xy+xz+yz)
a=2(5.5*3.4+5.5*8.25+3.4*8.25)
a=2(18.7+45.375+28.05)
a=2(92.125)
a=184.25 cm^2
10-4 =6
14x10= 140
50+49= 99
49x10=490
Answer:
Step-by-step explanation:
We have to follow these rules:
+/+ = +
-/- = +
+/- = -
-/+ = -
so
positive numbers:
+2/+3 ; -2/-3 ; -1/-3 ; +1/+3
negative numbers:
+2/-3 ; -2/+3 ; -1/+3 ; +1/-3
The correct answer 40%. Hope this helps!! :D