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zheka24 [161]
1 year ago
7

a surgeon developed a new procedure for knee replacement surgery. to study its effectiveness, they recruit patients who need kne

e replacement surgery and are willing to participate in a blind study. the surgeon randomly assigns each volunteer to receive either the new procedure or the standard procedure. after the surgeon performs the procedure, they monitor each patient to see if one group has better results than the other. what does it mean for this experiment to be blind?
Mathematics
1 answer:
pochemuha1 year ago
5 0

Answer: The volunteers are unaware of which surgery they receive.

Step-by-step explanation:

You might be interested in
You move down 5 units and up 5 units. You end at (1,3). Where did you start?
IgorC [24]

Answer:

(1, 3)

Step-by-step explanation:

Since up and down are opposites, the point didn't move at all.

I hope this helps!

pls ❤ and mark brainliest pls!

7 0
3 years ago
Find the value of x. Round to the nearest tenth.
Alborosie
Cos20=opp/hyp
cos20=19/x
x=19/cos20
5 0
4 years ago
Which of the following is a linear factor of 2x2 - x-6 ?
Julli [10]

Answer:

C

Step-by-step explanation:

Given

2x² - x - 6

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 2 × - 6 = - 12 and sum = - 1

The factors are - 4 and + 3

Use these factors to split the x- term

2x² - 4x + 3x - 6 ( factor the first/second and third/fourth terms )

= 2x(x - 2) + 3(x - 2) ← factor out (x - 2) from each term

= (x - 2)(2x + 3) ← in factored form

Thus 2x + 3 is a factor → C

6 0
3 years ago
I really need help with this please ! I don't understand it, and I have a quiz tomorrow
erik [133]
You can do this by finding a number close to it, and then finding out how to do it.

For example with 63(square root sign), find out what is close to it.

7x7=49 while 8x8=64

Because of this, we now know that it is between 7 and 8 but is also really close to 8.

Our number could be 7.9

Hope this helped!!!
3 0
3 years ago
Start with the number n = 54527. Divide n by 5 and round the result up to an integer. Keep repeating the division and rounding s
Elza [17]
Without rounding, I make it six. You could do it this way
54527/5^6 comes to a little over 3. That should be close enough. I'm going to check this by doing the divisions. I could let the computer do it, but I'd like to see if there's a pattern. There isn't and the correct answer is

6 <<<< divisions.


5 0
4 years ago
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