Im not sure but wouldnt it be 11 over negative 3?
Answer:

Step-by-step explanation:
We have completed the diagram with some lengths that come directly from the figure's symmetry.
Note the triangle formed at the left side of the trapezium is isosceles because it has an angle of 90° and another angle of 45°.
This means the base of the triangle has the same length as the height of 9.
This means the total base of the trapezium is x = 9 + 7 = 16
The right triangle must satisfy Pythagora's Theorem:



Simplifying the radical:

The correct answer is: 
<span>Benefits of writing a quadratic equation in VERTEX FORM
(1) You can immediately identify the vertex
(2) You can see if the graph is being horizontally shifted, and if so by how much and in which direction
(3) You can see if the graph is being vertically shifted, and if so by how much and in which direction
(4) You can see if the graph is being vertically compressed or stretched
(5) You can tell whether the parabola is concave up or down
Benefits of writing a quadratic equation in STANDARD FORM
(1) You can tell whether the parabola is concave up or down
(2) You can immediately identify the y-intercept
(3) With a little factoring, or by using the quadratic formula, you can identify the x-intercepts</span>
Answer:
I dont hell know
Step-by-step explanation:
Answer:
B
Step-by-step explanation: