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tino4ka555 [31]
2 years ago
7

Seven years less than 13 times the age

Mathematics
1 answer:
forsale [732]2 years ago
3 0
It is leomar de tdegvs fef fuwhf sf sfwvfsahfbas feufbasefbsafhsef/
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A recent research study randomly divided participants into groups who were given different levels of Vitamin E to take daily. On
horrorfan [7]

Answer: D. To produce treatment groups with similar characteristics

Step-by-step explanation:

By using randomization in sampling, the Sample would be more representative of the Population it is based off of because different demographic characteristics may be picked.

This leads to a situation where the groups have similar characteristics between themselves thereby making it easier for comparison. For example, Group 1 would have certain types of people that will be represented in Group 2 and Group 3 as well. That way the effects of the drug can be properly studied as it affects different people. For instance, say there are 4 obese people in a sample of 10, instead of group one having all obese people, randomization may be able to give group one, 2 obese people and 2 obese people to group 2 as well. That way when comparing, the effects of the drug on the two groups is easier to be compared because the two groups have similar people.

5 0
3 years ago
PLEASE HURRY!!!<br> What is the slope of the line in the graph?
Anastasy [175]

slope = change in y/ change in x

select two points on the line

(-4,4)

(0,1)

= (4-1)/(-4-0)

= -3/4

8 0
3 years ago
Solve for m in V = 3x + 2m - y.
jok3333 [9.3K]

Answer:

\large\boxed{m=\dfrac{V+y-3x}{2}}

Step-by-step explanation:

3x+2m-y=V\qquad\text{add}\ y\ \text{to both sides}\\\\3x+2m-y+y=V+y\\\\3x+2m=V+y\qquad\text{subtract}\ 3x\ \text{From both sides}\\\\3x-3x+2m=V+y-3x\\\\2m=V+y-3x\qquad\text{divide both sides by 2}\\\\\dfrac{2m}{2}=\dfrac{V+y-3x}{2}\\\\m=\dfrac{V+y-3x}{2}

8 0
3 years ago
A. Solve -4x - 4 = 4. Show your work. <br> B. Verify your solution.
Yuliya22 [10]

Answer:

-4x=4+4

x=8/-4

x= -2

not sure how I'm supposed to verify

4 0
2 years ago
A marathon is 26.2 miles long. If a runner can run 7.5 miles in 60 minutes, how many minutes will it take to run the full marath
olganol [36]
210 I think because theres 3.4 of 60minutes/ hrs and 3.4 times 60 is 209.6 and it said round to the nearest minute which is 9 so 210
5 0
2 years ago
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