Answer:
7.15x + 3.55y + 20 = weekly income
Step-by-step explanation:
7.15x + 3.55y + 20 = weekly income
Abscissa - perpendicular distance from the y- axis
ordinate - perpendicular distance from the x- axis
In a point P(x,y)
x is abscissa and y is ordinate
Answer:
Substitute x with six in the equation and solve as normal.
Step-by-step explanation:
The format here is a bit weird, but it basically means x is six.
Answer: -0.83
Step-by-step explanation:
A correlation coefficient(r) is used to determine the strength and direction of the relationship between two variables.
-1 ≤ r ≤1
For downward trend r is negative.
For strong correlation r should be closer to 1 or -1.
From the given correlation coefficients -0.83 is both negative and closer to -1.
Hence, a correlation coefficient represents the strongest downward trend in a data set = -0.83
The area would be about 83.14.
You can find this by starting with the formula for the area of an equilateral triangle:
A = 
In this equation, A is the area and S is the side. So we'll just plug in the value.
A =
A = 
A = 
A = 83.14
