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Minchanka [31]
3 years ago
10

Please help me I will really appreciate it thank you!!!

Mathematics
1 answer:
velikii [3]3 years ago
5 0

Answer:

the third one

Step-by-step explanation:

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Which expression is equivalent to
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Suppose you are to select a password of size 4. The first character should be any lowercase letter or a digit, while the second
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First question seems incomplete :

Answer:

40 ways

Step-by-step explanation:

Question B:

Number of boys = 6

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nCr = n! ÷ (n-r)!r!

4C2 = 4! ÷ 2!2! = 6

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Step-by-step explanation:

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