The table shows the results of an experiment in which subjects taking either a drug or a placebo either reported fatigue or did
not report Teague.
Which statements are true?
Chose all answers that are correct.
- more subjects took the drug than took the placebo.
- twenty-eight percent of the subjects did not report fatigue.
- a greater percent of the subjects did not report fatigue.
-a greater percentage of subjects taking the placebo did not report fatigue.
Which statements are true?
Chose all answers that are correct.
- more subjects took the drug than took the placebo.
- twenty-eight percent of the subjects did not report fatigue.
- a greater percent of the subjects did not report fatigue.
-a greater percentage of subjects taking the placebo did not report fatigue.
2 answers:
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Answer:
Step-by-step explanation:
In rectangle ABCD, AB = 6, BC = 8, and DE = DF.
ΔDEF is one-fourth the area of rectangle ABCD.
We want to determine the length of EF.
First, we can find the area of the rectangle. Since the length AB and width BC measures 6 by 8, the area of the rectangle is:
The area of the triangle is 1/4 of this. Therefore:
The area of a triangle is half of its base times its height. The base and height of the triangle is DE and DF. Therefore:
Since DE = DF:
Thus:
Since ABCD is a rectangle, ∠D is a right angle. Then by the Pythagorean Theorem:
Therefore:
Square:
Add:
And finally, we can take the square root of both sides: