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Romashka-Z-Leto [24]
3 years ago
14

( 0 0

Mathematics
1 answer:
ch4aika [34]3 years ago
7 0
<h2>D. If subjects knew they were receiving an active treatment, researchers would not have known if any improvement was due to the new medication or to the expectation of <u>feeling </u>better. If the researchers knew which subjects received which treatments, they might have treated one group of subjects differently from the other group.</h2><h2 />

For your question... the answer would be D

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3 years ago
What is the equation of a circle with center (-4 2) and diameter 6?
ASHA 777 [7]

Use the general form:-

(x - a)^2 + (y - b)^2 = r^2 where (a, b) is the centre and r = radius

Here the radius = 1/2 * 6 = 3 so r^2 = 9 and we have the equation:-

(x + 4)^2 + (y - 2)^2 = 9 (answer)

7 0
3 years ago
Hi, Guys This is Math 5th Grade I was Doing my homeWork when I did not know a question and I decided maybe 1 of you guys can hel
alexgriva [62]

Answer:

Circle A's attributes were used to be organized because both shapes have a <u>right angle</u>. Circle B's attributes were used to be organized because both shapes have <u>2 sets of parallel lines</u> that are across from each other. The middle was organized because both shapes have <u>2 sets of parallel lines</u> and <u>4 right angles</u>.

Step-by-step explanation:

Let me know if this helps!

6 0
2 years ago
Which statement best describes f(x) = -2 times the square root of x-7+1
BigorU [14]

Answer:

f(x) = -2*sqrt(x - 7 + 1)

Step-by-step explanation:

If by "statement" you mean equation, then it's pretty self-explanatory. Sorry if I'm confused though, you probably didn't list the proper choices.

5 0
3 years ago
Ayuda! <br> Necesito el inciso k) por 10 puntos
Bond [772]

Answer:

x=47is your answer

3x-11=130(alternate angle)

3x=130+11

x=141/3=47

6 0
3 years ago
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