8. Decide if the situation involves permutations, combinations, or neither. Explain your reasoning. The number of ways you can choose 2 books from a selection of 8 to bring on vacation

The number of ways to choose 5 books =

(10*9*8*7*6) which can be also seen as 10!/5!

10!/5! Is If you're counting each order you select books as a different "way."

Meaning (abcde) is different from (abced)

For each of those 10!5!, sets of 5 books, there's 5! ways to order it, so one way to see the correct answer is to divide by the number of same re-orderings, and get 10!/5!5!

Step-by-step explanation:

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step-by-step explanati∵∵∴∴on:

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation: