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Elena L [17]
3 years ago
10

Permutations + combination question ^^

Mathematics
1 answer:
BaLLatris [955]3 years ago
6 0

Answer:

Option D is correct

Step-by-step explanation:

Alex has 7 textbooks.

=>The number of ways to place 4 out of 7 books on the shelf is 7P4.

=> Option D is correct

Hope this helps!

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