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Andru [333]
3 years ago
7

R= I didn’t know it at all so if some one could help me‍♀️ Thank you

Mathematics
1 answer:
alexdok [17]3 years ago
3 0

Answer:

1

Step-by-step explanation:

1

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In designing an experiment involving a treatment applied to 4 test subjects, researchers plan to use a simple random sample of 4
avanturin [10]
There are 48 available subjects. Researchers should select 4 of them for their experiment. 
We should find the number of possible different random samples. The order of the selected subjects is not important. This means that we need to find how many different combinations of  subjects from total 48 are possible. <span>A </span>formula<span> for the number of possible </span>combinations<span> of </span>r<span> objects from a </span>set<span> of </span>n<span> objects is: n!/r!(n-r)!. In our case n=48 and r=4:
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4 0
3 years ago
Find the value of X. Segment addition
Maru [420]
X = 2.

Set up your equation like this:
3x + 4x = 14
7x = 14
x = 2

Hope this helped
3 0
3 years ago
Show work please and correct
77julia77 [94]

Answer:

-  \frac{1}{2}

its down 1 over 2 each time

7 0
3 years ago
Please help! What is the product of 2/3 x 5/6 x 14. please show how answer was achieved.
Wittaler [7]
70/9 this is the answer.
6 0
3 years ago
Read 2 more answers
10(8r+23) =1430 <br> HELP PLS ITS FOR MY HW PLS PLS PLS
Mademuasel [1]

Answer:

r = 15

Step-by-step explanation:

10(8r + 23) = 1430

Divide both sides by 10.

8r + 23 = 143

Subtract 23 from both sides.

8r = 120

Divide both sides by 8.

r = 15

7 0
3 years ago
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