What will not make a triangle A.11cm,13cm,3cm B.12cm,7cm,5cm C.19cm,14cm,7cm D.2cm,3cm,4cm please help!

B. 12cm,7cm,5cm

Step-by-step explanation:

use triangular inequality therom

A+B>C  12+7>5 true

B+C>A 7+5>12 false

A+C>B 12+5>7 true

One of the sides is not complete so it can not be a triangle.

if you mean

then it's c. 8, -7/3

but if you mean

then it is

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.