2 years ago

Which method will NOT solve this equation

Mathematics

2 answers:

Pie2 years ago

7 0

Answer:

There is no equation

Step-by-step explanation:

UkoKoshka [18]2 years ago

4 0

There is no equation

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KATRIN_1 [288]

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A gallery has 25 paintings in its permanent collection, with display space for 10 at one time. How many different collections ca

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You need to know in how many ways you can choose 10 out of 25 items when order does not matter. This is a combination problem.

$_{n}C_{r} = \dfrac{n!}{(n - r)!r!}$

$_{25}C_{10} = \dfrac{25!}{(25 - 10)!10!}$

$_{25}C_{10} = \dfrac{25 \times 24 \times 23 \times 22 \times 21 \times 20 \times 19 \times 18 \times 17 \times 16 \times 15!}{15! \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}$

$_{25}C_{10} = \dfrac{25 \times 24 \times 23 \times 22 \times 21 
\times 20 \times 19 \times 18 \times 17 \times 16}{10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 
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$_{25}C_{10} = \dfrac{23 \times 11 \times 20 \times 19 \times 2 \times 17}{1}$

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3 years ago

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Answer:

BDE- 85

EDG- 50

FDG- 60

CDA- 85

Step-by-step explanation:

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