Answer:
Step-by-step explanation:
(a) The type of study described in the question is referred to as an experimental study.
(b) The treatment group is the group that exercises 2 times a week, whereas the control group is the group that does not exercise.
(c) Yes, the study under consideration makes use of blocking.
The blocking variables are 18-30-year-olds, 31-40-year-olds, and 41-55year olds.
(d) No, the study under consideration did not make use of blinding because the patients know if they are in the group that exercises or the one that doesn’t.
Answer:
2k + 80
Step-by-step explanation:
Combine like terms.
3k + 8 - k + 72 =
= 3k - k + 8 + 72
= 2k + 80
Answer:
On the left, the first one goes with -3, the second one goes with 3, the third goes with -3, the 4th goes with 3, and the bottom one goes with 3.
Step-by-step explanation:
Answer:I got 198
Probably not correct but I hope it is
Step-by-step explanation:
Answer:
x = 3 and 1/3
Step-by-step explanation:
First, get the interior angle of the 114 by subtracting 114 from 180, and you should get 66. Next, add the two known interior angles of 66 and 64 to get 130. With the knowledge that the 3 interior of all triangles add up to 180, you should know that 3x-40 is equal to 180 -130, or 50. With 3x+40 = 50, start by subtracting 40 from both sides for 3x = 10. Finally, divide both sides by 3 to get x = 3 and 1/3