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ZanzabumX [31]
3 years ago
11

A study of a new medication found that patients who took the medicine have reduced blood pressure, compared to those who did not

take the medicine. The research team concluded that the medicine caused the reduction in blood pressure. Which study design did they most likely use?
They most likely used an experiment with patients randomly assigned to take the medicine or not take the medicine.
They most likely used an experiment with patients randomly assigned to groups based on their blood pressure.
They most likely used a survey asking patients if they took the medicine and how their blood pressure was affected.
They most likely used a survey asking patients if they took the medicine and if they felt the medication helped their blood pressure.
Mathematics
2 answers:
chubhunter [2.5K]3 years ago
7 0
<span>They most likely used an experiment with patients randomly assigned to take the medicine or not take the medicine.</span>
Ipatiy [6.2K]3 years ago
4 0

Answer:

The first option is the correct choice.

Step-by-step explanation:

They most likely used an experiment with patients randomly assigned to take the medicine or not take the medicine.

Here, the researchers used random selection to randomly select people from a larger group and told them to either take the medicine or not take the medicine. If patients took medicines, their condition improved. If they did not take the medicine, their condition did not get better.

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What is an equation of the line that passes through the points (-2, -5) and (-1, 1)?
Dennis_Churaev [7]

Answer: y=6x+7

Step-by-step explanation:

To find the equation of the line, we want to find the slope with the formula m=\frac{y_2-y_1}{x_2-x_1}.

m=\frac{1-(-5)}{-1-(-2)} =\frac{6}{1}=6

Now that we know th eslope, we can start to fill out the equation. To find the y-intercept, we can plug in a given point and solve.

y=6x+b

1=6(-1)+b             [multiply]

1=-6+b                 [add both sides by 6]

b=7

Now, we know the equation is y=6x+7.

8 0
3 years ago
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Which of the following sets of ordered pairs represents a function
Feliz [49]

Answer: A

Step-by-step explanation:

Each value of x maps onto only one value of y.

8 0
2 years ago
What is the vertex of g(x) = 3x2 − 12x + 7?<br><br> (−6, −5) <br> (−2, −5)<br> (2, −5)<br> (6, −5)
34kurt

Answer:

(2, -5)

Step-by-step explanation:

Convert to vertex form:

3x^2 - 12x + 7

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Completing the square:

= 3[ (x - 2)^2 - 4)] + 7

= 3(x - 2)^2 - 12 + 7

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Comparing with the general form

a(x - b)^2 + c  we see that the vertex is (b, c)  =   (2, -5).

4 0
2 years ago
kelly buys shoes with all the of her money. she only has $150. one pair of shoes is for her and they cost $40. the other 2 pairs
shusha [124]
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3 years ago
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<u>      + 8   + 8</u>
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      19     19
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y = 2(3.4) - 5
y = 6.8 - 5
y = 1.8
(x, y) = (3.4, 1.8)
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