Answer:
Johnny is wrong.

Step-by-step explanation:
Johnny is wrong.
A better definition would be:
is the set of all elements that belong to at least one A or B.
So, the elements that belong to both A and B, like c and d in this exercise, also belong to
.
So:

Answer:
x = 8, y = 
Step-by-step explanation:

Both 8 and x sides are congruent so they're equal.
Add 64 + 64.
Square root 128

Final answers: x = 8, y = 
1/3 is the slope.
x-3y=2
-3y=-x+2
y=(1/3)x+2/3
Answer:
segment IK or KI
Step-by-step explanation:
fgh is a segment of a line and IK is a segment of a line. fh is referring to the whole line so IK would be referring to that line segment.