y=x^2 - 10x +2
Use the form ax^2 + bx + c to find the values of a, b,and c.
a = 1 ( no number in front of the x^2)
b = 10
c = 2
Vertex form is a(x+d)^2 + e
Solve for d using d= b/2a
d = 10 / 2
d = 5
Find e using e = c - b^2/4a
e = 2 - 10^2/4
e = 2 - 25
e = -23
Vertex = d,e
Vertex = (5, -23)
Do 28+2 which is 30, and then 30/10 which is 3, so 3 equals z
Fish tank A
V = Ah = 25 ft^2 * 8 ft = 200 ft^3
Fish tank B
V = Ah = 40 ft^2 * 4 ft = 160 ft^3
The volume of fish tank A is 200 ft^3, and the volume of fish tank B is 160 ft^3, so fish tank A has a greater volume. Its volume is greater by 40 ft^3.
65 basketball cards because 260 split in to (divided) r groups equals 65
