What has the subject matter to do with it? It would help potential answerers to give an accurate reply if questions were precisely worded.
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Alternate them.
6 ways
There are 2*5! = 240 ways.
The number of ways that 15 books can be arranged on a shelf is the same as the number of permutations of 15 things taken 15 at a time. This is 15 factorial, or 15!, and is 1,307,674,368,000.
Placing only US history books on a bookshelf will create a specific look. The titles of the books are less important then the size and colors of the books. Some old war history books would work well.
The answer depends on how many books on each subject there are.
There are only 5 places on the shelf. You have 7 books to choose from. We will ignore the order of the books on the shelf. The first place can be filled from a choice of 7 books, the next place from 6, the next place from 5, the next from 4, and the last of the 5 places from 3 books. So the number of ways of choosing the 5 is found from 7 * 6 * 5 * 4 * 3 = 2520
Stack the books on the shelf that is higher in height.
book shelf, libery, biblotech
Not unless you use a single bookshelf. 29 is a prime number.
There are seven books on the floor. Let x be the number of books on the floor. The number of books on the shelf is 2 + 3x. From the information given, 3x + 2 = number of books on the shelf. Substitute x=7 into 3x + 2 to find the answer. So, there are 23 books on the shelf.
Yes. They are real.
Please place the books on the shelf in chronological order.
28
my clossal shelf is full of books and toys
The collective noun is a shelf of books.