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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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Find the selling price of each item Cost of a sled:99.50 Markup:95%
IRINA_888 [86]

Answer:

Take wholesale cost and multiply it by 95%, then add to the original value

another way, just multiply by 1.95

Retail cost:  1.95*($99.50) = $194.03



5 0
3 years ago
The interior angle of a regular polvgon is 9 times the size of its exterior angle
Thepotemich [5.8K]
<h3>Answer:   20 sides</h3>

==================================================

Work Shown:

x = exterior angle

9x = interior angle

interior + exterior = 180

9x+x = 180

10x = 180

x = 180/10

x = 18

n = number of sides

n = 360/x

n = 360/18

n = 20

There are <u>20</u> sides to the regular polygon.

Side notes:

  • The formula to determine n only works for regular polygons.
  • A polygon with 20 sides is known as an icosagon.
  • Any pair of adjacent interior and exterior angles are supplementary. They add to 180 degrees.
3 0
2 years ago
The ratio of the number of dolls Jacky had to the number of dolls Peter had was 5:2 but, after Jacky gave 15 dolls to Peter, the
sleet_krkn [62]

Answer:

70 dolls

Step-by-step explanation:

Hello!

The ratio is 5:2, which are division of  a whole. They can be represented as 5x and 2x.

Jacky has 5x dolls, and Peter has 2x dolls. They were equal after subtracting 15 dolls from 5x and adding them to 2x.

Equation:

  • 5x - 15 = 2x + 15

Solve:

  • 5x - 15 = 2x + 15
  • 5x - 30 = 2x
  • 5x = 2x + 30
  • 3x = 30
  • x = 10

So Jacky has 5(10) dolls, or 50 dolls, and Peter has 2(10) or 20 dolls.

The total sum is 70 dolls.

4 0
2 years ago
Read 2 more answers
A silo is a storage bin that is a cylinder with a hemisphere on top.A farmer has a silo with a base radius of 30 feet and a stor
vladimir1956 [14]
1000 square feet of wheat produces 250 pounds of grain.

7 0
3 years ago
A semicircular window with a RADIUS OF 20 inches is going to be laminated with a sunblock coating that costs 1.50 PER SQUARE INC
yan [13]

Answer:

B:942$

Step-by-step explanation:

(pi*20^2)/2 is approximately 628.32

628.32*1.5=942.48

3 0
2 years ago
Read 2 more answers
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