1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valina [46]
4 years ago
9

A drug company is testing a new blood pressure medication. 100 patients with high blood pressure will be divided into two groups

, A and B. Group A will be given the new medication for 30 days, while group B will receive a placebo. Which method would be best for forming the two groups? A) Let the 100 patients decide among themselves which group they wish to be in. B) Divide the 100 patients based on their family history of high blood pressure. C) Write the names on same-sized slips of paper, put them in a box, then close your eyes and choose 50. D) Select members for the two groups so that their mean blood pressures are as close to equal as possible.
Mathematics
2 answers:
ohaa [14]4 years ago
4 0
I would say C.
A and B make no sense, you want to divide the group randomly because you want to test the new medicine. D is a bit more logical than A and B but still can't, because that isn't random.
Vinvika [58]4 years ago
3 0

Answer:

C) Write the names on same-sized slips of paper, put them in a box, then close your eyes and choose 50.

Step-by-step explanation

Usatestprep said it was right

You might be interested in
Analyze the key features of the graph of f(x) shown below.
melomori [17]

Answer:

y= -2 + 1/(3+x)

If you want to check just plug it into a graphing calculator.

3 0
3 years ago
Is this a function??
Blizzard [7]
Yes this is a function because the definition of a function is if the x doesn’t repeat and we can test this with the vertical line test that states that if you put an imaginary line where the points are the x shouldn’t repeat in this case this is true as the x doesn’t repeat

Your welcome
8 0
3 years ago
Use the image to complete the equation below
s2008m [1.1K]

Given:

A figure in which a transversal line intersect the two parallel lines.

To find:

The missing value for the equation m\angle \_+m\angle BPD=180^\circ

Solution:

In the given figure, the two parallel lines are line ED and line AB, and CD is the transversal line.

Angle BPC and angle BPD lie on a straight line CD. So,

m\angle BPC+m\angle BPD=180^\circ          (Supplementary angles)

Angle APD and angle BPD lie on a straight line AB. So,

m\angle APD+m\angle BPD=180^\circ          (Supplementary angles)

Therefore, the required complete equations are m\angle BPC+m\angle BPD=180^\circ and m\angle APD+m\angle BPD=180^\circ.

6 0
3 years ago
Factor the trinomial (
Snezhnost [94]

Answer:

Prime.

Step-by-step explanation:

A^2+4a+12

Not factorable.

3 0
3 years ago
What is the sum of x^2 - 3x + 7 and 3x^2 + 5x - 9
Dmitrij [34]

Hey there!

The answer to your question is 4x^2+2x-2

Given:

x^2-3x+7 and 3x^2 +5x-9

First, we can start by adding like terms. The following are like terms:

x^2 and 3x^2

-3x and 5x

7 and -9

Now, we can add these pairs together, giving us:

4x^2

2x

-2

Now, add all this together, and we get our answer as:

4x^2 + 2x - 2

Have a terrificly amazing day!

7 0
3 years ago
Other questions:
  • A human factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student i
    12·1 answer
  • Find r (2,r) and (-5,,11) ; m= -2
    7·1 answer
  • Maria and 3 friends have 1200 soccer cards. If they share the soccer cards equally how many will each person receive.
    14·1 answer
  • Axel writes each letter of his name on a tile and places the 4 tiles in a bag. If he draws each tile out of the bag at random, w
    9·2 answers
  • Amelia is 17 inches long. She add 8 more inches to her line. How long is her line now?
    5·1 answer
  • A salesman gets a commission of 2.4% on sales up to sh. 100,000. He gets an additional commission of 1.5% on sales above this. C
    15·1 answer
  • Help me answer this please dont take the point
    12·1 answer
  • A 6-ounce package of pistachios costs $3.60. The unit rate is $ per 1 ounce of pistachios?
    12·2 answers
  • This problem is about mean,mode,median.<br> I need someone's help on figuring out this process.
    6·1 answer
  • Select the best real-world situation that can be represented by 15 + c = 18.50. Then solve the equation and describe what your a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!