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fomenos
3 years ago
8

Simplify the expression 7C4

Mathematics
1 answer:
Nady [450]3 years ago
6 0
To simplify 7C4 we use the combination formula given by:
nCr=n!/[(n-r)!r!]
thus:
In our case we shall have:
n=7 and r=4
7C4
=7!/[(7-4)!4!]
=5040/[6×24]
=5040/144
=35

The answer is 35

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Solve the equation for y.<br> 8x – 9y = 11
pav-90 [236]
8x-9y=11

First you move the 8x because you have to leave the 9y alone

8x-9y=11
-8x        -8x

-9y=11-8x

Now you have to move the -9, so the inverse of multiplying is dividing so you divide -9.

-9y/-9= 11/-9 -8x/-9

since you can't have negative as a denominator it would be:

y= -11/9+8x/9

<span>You have to change the signs</span>
3 0
3 years ago
What is the research hypothesis when using anova procedures?
Pachacha [2.7K]

When using ANOVA procedures, the research hypothesis is: there is no significance difference within the mean values of the groups.

<h3>What is a Research Hypothesis in ANOVA Procedure?</h3>

ANOVA procedure compares the mean values of different groups that are administered with treatments. The research hypothesis, such as the null hypothesis would be stated as: no significance difference in the mean values within the groups.

Thus, we can conclude that the research hypothesis when using the ANOVA procedures can be stated as a null hypothesis, which states that: there is no significance difference within the mean values of the groups.

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5 0
2 years ago
Su Ling started an art project with 1 yard felt. She used 5/6 yard. How much felt does Su Ling have left?
damaskus [11]

Answer:

1/6 yard of felt

Step-by-step explanation:

Su Ling started with one yard, and she used 5/6 of it, which means five-sixths of the yard of felt get taken away. Now you have the last sixth of the yard left over - 1/6 of a yard of felt. One equals six sixths, so here's the math -

1yd = 6/6 yd

6/6 yd - 5/6 yd = 1/6 yd

7 0
3 years ago
Solve for n.<br> n−10=5−4n <br> Enter your answer in the box.<br><br> n =
vodka [1.7K]
N-10=5-4n
n+4n=5+10
5n=15
n=3
4 0
3 years ago
Does anyone know the coordinates for this if i graphed it?
zavuch27 [327]

Answer:

I have no idea

Step-by-step explanation:

5xt789v

6 0
3 years ago
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