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sladkih [1.3K]
3 years ago
5

Please Help Me Thanks!​

Mathematics
1 answer:
Vesna [10]3 years ago
7 0

Answer:

No solution

Step-by-step explanation:

add 3 both side

\sqrt{x-4}=-2

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1) In this study, the control group is the first group of 310 subjects that were instructed to take only 600 mg daily of vitamin C. (Option C; that is, group 1).

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A double-blind experiment/study is one in which both the conductors of the experiment and the participants in the experiment wouldn't know which group any participant is in. The conductors wouldn't know which participants were in the control or treatment group and the participants too wouldn't have an idea whether they are in the control or treatment group.

To learn more about the vitamin visit: brainly.com/question/24324739

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