Answer:
-1/2
Step-by-step explanation:
If you connected the dots here you would have a straight line. The average rate of change for a straight line is also known as the slope. Slope, by definition, is rise over run (although rise doesn't necessarily mean "up"; it could also mean down, as it does here). From one point to the next in our graph, we go down 1 unit (-1) and to the right 2 units (+2). Therefore, the slope of the line is -1/2.
Answer:
D. a matched pairs experiment.
Step-by-step explanation:
A matched pairs experiment can be designed when there are only two possible treatment conditions (Screen A and Screen B) within an experiment and the subjects can be accordingly grouped into pairs (Both sides of the body of a same person, since both sides present the same skin complexion). Within each pair (both sides of the subject's body), subjects are randomly assigned (coin toss) to different treatments.
Therefore, this experiment is an example of a matched pairs experiment.
Although you didn’t list any equations, here is the correct one:
15 + 5x = 25
1.5 twice a day makes it so it’s 3 miles total. Thus, you need to multiply that by 5 to get the total amount in one week.
x will solve for each evening per day.
Hope this helps!
Answer:
x = 7 & y = 8
Step-by-step explanation:
We know that
Mean = Sum of terms/Total terms
=> Mean = 4 + 6 + x + y + 10/5
=> Mean = 20 + x + y/5
Now,
Median = (n + 1)/2
=> Median = (5 + 1)/2
=> Median = 6/3
=> Median = 3rd term = x
So,
x = 20 + x + y/5
x × 5 = 20 + x + y
5x = 20 + x + y
5x - x = 20 + y
4x = 20 + y
Since x and y are in order so,
Possible outcomes will be 7,8 & 9
(7,8) & (8,9) & (7,9)
Taking x = 7 and y = 8
4(7) = 20 + 8
28 = 28
Hence,
x = 7 and y = 8
