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valina [46]
3 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]3 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]3 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

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In which quadrant does the point (-4,15) lie
Ivanshal [37]
Quadrant one

Hope this helped
7 0
3 years ago
Please please help me out
mihalych1998 [28]

Answer:

A trinomial of degree 5

Step-by-step explanation:

A monomial has only 1 term

A binomial has 2 terms

A trinomial has 3 terms

4x^{5} + 3x³ - 7x ← has 3 terms and is therefore a trinomial

The degree of a polynomial is determined by the largest exponent of the variable in the expression

4x^{5} is the term with the largest exponent in the expression

Hence a polynomial of degree 5

6 0
3 years ago
What are the common factors of 35 and 60?
Ksivusya [100]
I think it is 5 !!!!!!!!!!!!!!

3 0
3 years ago
Line JK passes through points J(–4, –5) and K(–6, 3). If the equation of the line is written in slope-intercept form, y = mx + b
4vir4ik [10]
The value of "b" is the y-intercept.

In order to figure out slope-intercept form you need 1 coordinate and the slope.
1) Find the slope, using the 2-point slope formula: "m= y2-y1 / x2-x1".
   ex. m= -5 - 3 / -4 - -6   (simplify)--->   m= -4

2) Fill in the blanks for point-slope formula: "y - y1 = m (x - x1)"
(choose one coordinate, it doesn't matter which one)
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3) Then use basic algebra to simplify.


7 0
2 years ago
In a right triangle, one acute angle is 22º and the hypotenuse is 70 cm. Find the
meriva

Answer:

Adjacent leg (In relation to the angle that is measure 22 degrees)= 70*Cosine 22 or 64.9; Opposite leg (In relation to the angle that is measure 22 degrees)=70* Sin 22 or 26.22

Step-by-step explanation:

The other angle measure is 90-22 or 68.

To find the length of the adjacent leg (a) use cosine. Remember cosine is Adjacent leg over hypotenuse.

Cosine 22= a/70- Multiply by 70

70* Cosine 22=a or about 64.9

To find the length of the opposite leg (o) use sine. Remember sine is Opposite leg over hypotenuse

Sine 22= o/70

70*Sine 22=o

o= about 26.22

4 0
2 years ago
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