Answer:
x=0
Step-by-step explanation:
The axis of symmetry:
when the equation is 
The given equation is:

To make the a and b values more easily identifiable, we can rewrite it like this:

Now, we can tell that a=1 and b=0. Plug these into the equation
:

Therefore, the equation for the axis of symmetry for the parabola is x=0.
I hope this helps!
Answer:
500:10
Step-by-step explanation:
I think that is it, sorry I can't really remember I did ratios a long time ago.
The <em>correct answer</em> is:
Use the circumcenter to determine the center of the circle
.
Explanation:
The steps James has completed have constructed the perpendicular bisectors of two sides of the triangle, DE and EF. The point where the perpendicular bisectors of the sides of a triangle meet is the circumcenter of the triangle. This is also the center of the circumcircle, or circumscribed circle.
We need to extend these bisectors so that they intersect. We then set our compass on this point and set the width from this center to any vertex of the triangle. This will be the radius of the triangle; we draw the circle and are finished.
Given:
Total number of problems = 24
Michael completed
of his homework in
of an hour.
To find:
What fraction of his homework would he complete in one hour.
Solution:
We have,
Part of work done in
of an hour 
Part of work done in an hour 

Therefore, he complete
of his homework in 1 hour. Hence, all options are incorrect.