Answer:
4.5 cm.
Step-by-step explanation:
We have been given that circle O has a circumference of approximately 28.3 cm.
We will use circumference formula to solve for the radius of our given circle.

Upon substituting the measure of circumference in above formula we will get,


Therefore, the radius of circle O is 4.5 cm.
8x^2-14xy+3y^2 is the answer
Answer:
Step-by-step explanation:
I've answered this question already.
We have the following function that is a
quadratic function:
So the graph of this function is shown in the figure below. This is a
parabola as you can see. The roots of this functions, that is, the x-intercepts are:

As you can see in the figure. This function
decreases from

and
increases from

Finally, it is important to note that the
vertex is the point:
The answer is the second graph.