Answer: proving the different relationships help basic concept
-c +4d
Step-by-step explanation:

Group like terms and simplify

Answer:x:
y=-5/4
Step-by-step explanation:
Vertex (1,-1)
focus(1,-3/4)
Axis of symmetry(X=1)
Answer: B
Step-by-step explanation:
-3x^2-9xi+9ix-27
-3x^2-27
Answer:
Given mathematical expression means that '9 is a member of the set T'.
Step-by-step explanation:
We are given the mathematical expression,
' 9 € T '.
In words, it means '9 belongs to T'.
That is, 'the element 9 belongs to the set T' i.e. '9 is a member of the set T'.
Hence, the given mathematical expression means that '9 is a member of the set T'.