If the 10 books are all different, we have:
• 10 ways of selecting the first book,
,
• 9 ways of selecting the second book,
,
• 8 ways of selecting the third book,
,
• 7 ways of selecting the fourth book.
The total number of ways to arrange 4 of the 10 books is:
Answer
There are 5040 ways of arranging the books.
Hi there,
5n - 9 + 4n + 5
5n - 4n = 5 + 9
Hence, N = 14
Hope this helps :)
Answer:
5x-13
The Answer is in the picture above please mark me brainliest. :)
Answer:
195 ft.
Step-by-step explanation:
I don't have an actual explanation because I simply guessed based on the dimensions and what made the most sense and I got it right. If someone has an explanation as to why it is 195 ft please lmk. Other than that, 195 ft is the correct answer.