Answer:
A. negative correlation
Step-by-step explanation:
Let two variables x and y, the correlation coefficient r measure to what degree the variables x and y are related.
--- If this coefficient is positive then the relationship will be positive. This means that even an increase in the variable x will produce an increase in the variable y. In the dispersion diagram the points will be grouped, simulating a line of positive slope.
--- If this coefficient is negative then the relation will be negative. This means that even an increase in the variable x will produce a decrease in the variable y. In the dispersion diagram the points will be grouped, simulating a negative slope line.
In the diagram shown it can be noted that as the variable x increases the variable y decreases.
Therefore it can be concluded that the correlation between x and y is negative. The correct option is option A
Answer:
y=2
Step-by-step explanation:
if x=6 then 12-3y = 6 meaning y=2 because 12-6=6
Answer:
I'm tried of smiling for others and holding all their problems
Answer:
Cost to rent one tank=226.08 Dollars
Step-by-step explanation:
Radius of the cylindrical tank=3 feet
Height of the tank= 2 feet
Cost to rent one tank= Volume of one tank * cost to rent one cubic feet of volume
Volume of the cylindrical tank:
=![\pi r^2](https://tex.z-dn.net/?f=%5Cpi%20r%5E2)
As, ![\pi =\frac{22}{7}=3.14](https://tex.z-dn.net/?f=%5Cpi%20%3D%5Cfrac%7B22%7D%7B7%7D%3D3.14)
Putting the values in the formula:
Volume of the tank:
![=3.14*(3*3)*2\\\\=3.14*9*2\\\\=3.14*18\\\\=56.52feet^3](https://tex.z-dn.net/?f=%3D3.14%2A%283%2A3%29%2A2%5C%5C%5C%5C%3D3.14%2A9%2A2%5C%5C%5C%5C%3D3.14%2A18%5C%5C%5C%5C%3D56.52feet%5E3)
Cost to rent one cubic feet= 4 Dollars
Cost to rent 56.52 Cubic feet of one tank;
= 4*56.52
=226.08 Dollars
Answer:
Step-by-step explanation:
has to sweep 4/6
already swept 3/6
it needs to sweep 1/6 because
4 / 6-3 / 6 = 1/6
Since they are fractions with the same denominator, you place the same denominator and subtract the numerators.