12d+2-3d=5 collect the like terms
9d+2= 5 move constant to the right
9d=5-2 subtract the number
9d=3d divide both sides by 9
answer = d=1/3
Answer:
Solution-
We know that,
Residual value = Given value - Predicted value
The table for residual values is shown below,
Plotting a graph, by taking the residual values on ordinate and values of given x on abscissa, a random pattern is obtained where the points are evenly distributed about x-axis.
We know that,
If the points in a residual plot are randomly dispersed around the horizontal or x-axis, a linear regression model is appropriate for the data. Otherwise, a non-linear model is more appropriate.
As, in this case the points are distributed randomly around x-axis, so the residual plot show that the line of regression is best fit for the data set.
Hope this helps!
Step-by-step explanation:
Use the pythagorean theorem. You should come out with C. Hope this helps!
Answer:
a. m=3
b. m= -1/4
c. m= 0.25
d. m= 7
Step-by-step explanation:
y=mx+b
15/2 = $7.5 per hour
7.5 times 5 = $37.50 earned in 5 hours
