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Vesna [10]
2 years ago
5

There are 30 students in a class. Five of them are randomly selected to form the dance committee. How many different committees

can be formed?
Mathematics
2 answers:
ziro4ka [17]2 years ago
7 0

Answer: 6

Step-by-step explanation:

Sidana [21]2 years ago
6 0

Answer:

<h2>6 different committees</h2>

Step-by-step explanation:

30 students / 5 = 6

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The answer to your question would be A
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Find the slope that passes thru (3,5) and (5,8)
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The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100 What is the st
cluponka [151]

Answer:

12.3

Step-by-step explanation:

Step 1

We find the mean

The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100

Mean = Sum of terms/Number of terms

Number of terms = 10

Mean = 61 + 67 + 81 + 83 + 87 + 88 + 89 + 90 + 98 + 100/10

Mean = 844/10

Mean = 84.4

Step 2

Standard deviation

The formula for sample standard deviation =

√(x - Mean)²/n - 1

= √[(61 - 84.4)² + (67 - 84.4)² + (81 - 84.4)² + (83 - 84.4)² + (87 - 84.4)² + (88 - 84.4)² + (89 - 84.4)² + (90 - 84.4)² + (98 - 84.4)² + (100 - 84.4)²]/10 - 1

=√ 547.56 + 302.76 + 11.56 + 1.96 + 6.76 + 12.96 + 21.16 + 31.36 + 184.96 + 243.36/10 - 1

= √1364.4/9

= √151.6

= 12.31259518

Approximately to the nearest tenth = 12.3

The standard deviation = 12.3

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2 years ago
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Income tax. it taxes you on how much you earn.
<span><span>In the UK:
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Personal Allowance
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</span><span>Basic rate                  £11,501 to £45,000 20%
</span><span>Higher rate                £45,001 to £150,000 40%
</span><span>Additional rate          over £150,000 <span>45%</span></span></span>
6 0
3 years ago
Read 2 more answers
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