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mojhsa [17]
3 years ago
9

There are nine students in the chess club the club moderator select three of them to go to a chess tournament and how many ways

can she choose three of the nine students
Mathematics
2 answers:
Solnce55 [7]3 years ago
5 0

Answer:

84

Step-by-step explanation:

umka2103 [35]3 years ago
3 0

Answer:

apex: 84

Step-by-step explanation:


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A bag contains 8 red pens, 7 blue pens, and 14 black pens. Denato will pull a pen from the bag.
Svetradugi [14.3K]

Answer:

The answer is: C.

Step-by-step explanation:

When you add 8 + 7 + 14 you get 29. What I did was.. I took half of the 29 and my results were 14.5 pens. Denato, Could possibly get half of 14.5 which will be 7. But I believe the best answer is C.  

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3 years ago
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What is the equation of the line that passes through the point (5, 4) and is perpendicular to the line whose equation is 2x + y
konstantin123 [22]

So a line that is perpendicular is a line that intercepts other line at a 90 degree angle.

Slope of perpendicular lines is the opposite sign and the reciprocal of the other.

So if your slope was 2 the perpendicular line would have a slope of -1/2.

So the equation, 2x + y = 3

Can be rewritten as

y= -2x+3

Perpendicular slope: 1/2

Since it intercepts/ passes the coordinates (5,4) it means that those values are included in the function input x and output y.

y=mx+b

4=1/2(5)+b

Solve for b (y intercept)

4-2.5=b

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So the equation of the perpendicular is

y=1/2x+3/2 or y=.5x+1.5

8 0
3 years ago
Find the product of 4 x 4 and enter it in the space
Elena-2011 [213]

Answer:

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Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, 4*4 is equal to 4+4+4+4 which is also 16.

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

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4 0
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Which graph represents the function f(x) = 2/x-1 +3<br>​
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Step-by-step explanation:

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The product of ten and a number
Dvinal [7]

Answer:

10n

Step-by-step explanation:

n represents number, its like using X, since we don't have the information on it, we replace it with a letter.

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