BS
associative property
C minus B equals AB
2
An exothermic chemical reaction.
50
yes because ab plus bc is ac
It is an expression and a term that are of equal value
Commutativity.
The existence of the additive inverse (of ab).
That depends on the value of CD and the perimeter of the quadrilateral out lined in the question
associative property
the midpoint of AB.
C minus B equals AB
15
ab=1a+1b a is equal to either 0 or two, and b is equal to a
If, as is normal, ab represents a times b, etc then ab + ab + cc = 2ab + c2 which is generally not the same as abc.
2