7, the missing angle is the hypotenuse so you add the other two angles to find that
Im sorry Im not that good at geometry.
Hello :
<span> (12x^3-4x^2+8x) / -2x = - 6x²+2x - 4</span>
21 because i looked it up and asked a staff and it is write
Answer:
The vertex of the function is 
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:

It's vertex is the point 
In which


Where

If a<0, the vertex is a maximum point, that is, the maximum value happens at
, and it's value is
.
f(x) = x² - X + 2.
Quadratic equation with 
So



The vertex of the function is 