vertex form of the equation for a parabola
y = a(x-h)^2 +k
y = a(x--3)^2 +2
y=a(x+3)^2 +2
Choice B
From the shaded diagram, Raphael will need 3 of the 6 equal portions, or exactly 1/2 of the area of the circle. Given a radius of 12 ft, knowing that the area of any given circle is

, and knowing that the area of the fabric needs to be half of the total area, we can set up the equation for the area of the fabric

:

Simplifying, we find that the area of the fabric is exactly

ft.² Using the approximation of 3.14 for π, we get an area of approximately

ft² of fabric.
For b, by moving coins the mode and median changes but only the mean doesn't change.
Just read what it says not that hard go to the left twice and go up 4 units.
Hope you have a good day