Answer:
The regression line is not a good model because there is a pattern in the residual plot.
Step-by-step explanation:
Given is a residual plot for a data set
The residual plot shows scatter plot of x and y
The plotting of points show that there is not likely to be a linear trend of relation between the two variables. It is more likely to be parabolic or exponential.
Hence the regression line cannot be a good model as they do not approach 0.
Also there is not a pattern of linear trend.
D) The regression line is not a good model because there is a pattern in the residual plot.
A.) To find the average speed, you have to divide the distance by the time. But first, let's convert the time into hours:
Time = 1 hour + (18 min*(1 h/ 60min)) + (27 s * (1 h/3,600s))
Time = 1.3075 hours
Average Speed = Distance/Time = 26.2 miles/1.3075 hours
Average Speed = 20.038 miles per hour
b.) Using the speed calculated in part a, we can determine the time by dividing the given distance to the average speed.
Time = Distance/Speed
Time = 30 miles/2.038 miles/hour
Time = 14.72 hours
Answer:
4y^4 + 6y = 256y + 6 = <u>262y</u>
Step-by-step explanation:
Remove the variables for a second and think of the problem as a normal expression; 4^4 + 6
Simplify the first term; 4^4 = 256
Now, add 6; 256 + 6 = 262
Add back in the variable; 262y