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Rashid [163]
3 years ago
11

How many ways can a group of 8 students be selected from 9 students?

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0
9!/(8!*(9-8)!)=9
or just use a calculator and use the nCr function
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Helga [31]

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Gwar [14]

Answer:

pemdas is an order of operation

Step-by-step explanation:

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2 years ago
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Elena thinks length BC is 16.5 units. Lin thinks the length of BC is 17.1 units. Do you agree with either of them? Explain or sh
kirill [66]

Answer:

Option D, I agree with neither Elena nor Lin

Step-by-step explanation:

The remaining part of the question is attached herewith

Solution

As we can see in the image  

ED is perpendicular to AB and BC is perpendicular to AB

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AC^2 = AB^2 + BC^2  

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