<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
Answer:
m=1 b=4
Step-by-step explanation:
slope: y=mx+b m=1
interception: b=4
if four points are collinear, that are also coplanar: This is true
If points lie in the same line. they must lie in the same plane
Answer:
They correspond. a/b=f/e
Step-by-step explanation: