Answer:
Step-by-step explanation:
- calculate the mean of your data set(x bar)
- Subtract each data value from the mean and calculate the square
- add all of these squares
- divide by n-1 (For a sample) to get the variance
If you’re calculating the variance of a population(not sample) divide by N.
Width of rectangle = 6 units
Length of rectangle = 2X+8 units
Area = 108 units square
Area = length * width



units
Answer:
.7%
Step-by-step explanation:
hope this helps and have a great day :)
Answer:
where the diagram
Step-by-step explanation:
but i guess is true
Answer:
(3, 1.7)
Step-by-step explanation:
The point at which the vertices of a triangle meet is known as the orthocenter of the triangle. The orthocenter passes through the vertex of the triangle and is perpendicular to the opposite sides.
Two lines are perpendicular if the product of their slopes is -1.
The slope of the line joining D(0,0), F(3,7) is:

The slope of the line perpendicular to the line joining D and F is -3/7. The orthocenter is perpendicular to the line joining D and F and passes through vertex E(7, 0). The equation is hence:

The slope of the line joining E(7,0), and F(3,7). is:

The slope of the line perpendicular to the line joining E and F is 4/7. The orthocenter is perpendicular to the line joining E and F and passes through vertex D(0, 0). The equation is hence:

The point of intersection of equation 1 and equation 2 is the orthocenter. Solving equation 1 and 2 simultaneously gives:
x = 3, y = 1.7