Answer:
5
Step-by-step explanation:
2^2= 4
-4*2=-8
-8+3=5
Answer:

Step-by-step explanation:
Standard form:

Vertex form:

(h, k) is the vertex
x is the coordinate of the vertex
To find x use the formula:


a=1
b=-2
c=-6
Substitute:

Substitute x in equation:

h=1
k=-7
Substitute h, and k into the vertex formula:

Answer:
C
Step-by-step explanation:
They are vertical angles, vertical angles always have the same measurement. example below
this angle is 56---> 56 ><m <---- this angle is always 56 since they are vertical