Answer:
−2 ∉ {−6,−3,−5,−1}
Step-by-step explanation:
Given
Set = {−6,−3,−5,−1}
Element = -2
Required
The interpretation of the question is to state if -2 is an element of the given set or not
The first thing to do is to check through the set to count the number of occurrence of -2
Looking through Set = {−6,−3,−5,−1}, we have that the occurrence of -2 is 0
This implies that -2 is not an element of the given set and this is represented by the symbol ∉
Hence:
−2 ∉ {−6,−3,−5,−1}
The product of a non-zero rational and an irrational number is always irrational (2)
The another way to state the transformation would be 
<u>Solution:</u>
Rotation about the origin at
: 
The term R0 means that the rotation is about the origin point. Therefore, (R0,180) means that we are rotating the figure to
about the origin.
So, the transformation of the general point (x,y) would be (-x,-y) when it is rotated about the origin by an angle of
.
Hence according to the representation, the expression would be
.
Answer:
D
Step-by-step explanation:

factoring out a negative