<h3>
Answer: 78.6</h3>
Work Shown:
Multiply across the rows to form a third column. Example: 9*90 = 810 in the first row.
The values in the third column add to 810+1440+1050 = 3300
Divide this over the total number of people which is 9+18+15 = 42
The mean is 3300/42 =78.571 approximately which rounds to 78.6
Because 843,000 is closer to 840,000 than 850,000
Answer: (-2, -5)
Step-by-step explanation:
When reflecting over the y axis, (x, y) becomes (-x, y).
So A(2, -5) turns into (-2, -5).
The equation of a parabola is y=a(x-p)^2+q, where (p,q) are the coordinates of the vertex. The value of p will be your axis of symmetry.
(x+2)^2=0
In order for 0=0
x=-2
So your axis of symmetry is x=-2
