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You are required to choose two topics from a list of six to write about on your science test. How many different pairings are possible? 10 20 12 15

User Patrick F
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1 Answer

1 vote

Answer:

D or 15

Explanation:

6C2

6!

======

(6 - 2)! 2!

6*5 / 2

15

The answer is D

User Oleg Khalidov
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