I did the problem and I got negative 4 over 9
ANSWER
Vertex form:

Vertex
V(-4,-11)
EXPLANATION
The given expression is

We complete the square to get the vertex form.
Add and subtract half the square of the coefficient of x.


The vertex is
V(-4,-11)
Answer:
x=-1
Step-by-step explanation:
2x+3/4(4x+16)=7
2x+(3x12)=7--->distributive property
2x+3x+12=7
5x+12=7--->addition property
5x=-5--->subtraction peroperty
x= -1---?division property
Answer:
0
Step-by-step explanation:

Changing x to y and y to x:

I hope I helped you.
Answer:
The average is 5.41666667 degrees.
Step-by-step explanation: