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How many ways can 9 books be arranged on a shelf?
Assuming that each of the nine books is unique, that there are only nine positions open on the given shelf, and that each book can fit in each position, the answer is 9! (nine factorial) which is equal to 362,880. If the nine books are not all unique (i.e. there are two of the same book), the number should decrease taking into effect that reversing the positions of the identical books makes no overall change. If there is one additional position, the number should increase to 10! or 3,628,800. If there is more than one additional position, the number will still increase, but not to 11! or 12! since both open spaces are reversible just like the identical books.
9 In how many different ways can you arrange 7 books on a shelf?
Consider one placement at a time. The first book on the shelf could be any of seven. The second could be any of the remaining six. This continues with the rest. The total combinations are: 7! = 7*6*5*4*3*2*1 = 5040
When finding the probability of two or more events what should you do with the fractions?
If it's like this: "There are 4 books in a bag and two of the four are fiction. Jess randomly pulls one out of the bag and replaces it. What is the probability of getting two fiction books?" Then you should do this, 2/4 x 2/4 = 4/16 or 1/4 If it's like this: "There are 4 books in a bag and two of the four are fiction. Jess randomly pulls one out of the bag and doesn't replace it. What is the probability of getting two fiction books?" Then you should do this, 2/4 x 1/3 = 2/12 or 1/6
What is the average cost of a diamond?
There is no average: diamonds cost what they cost, because every diamond is individual, unique and one of a kind. As well, every monetary transaction that involves a diamond is also unique -- whether it occurs on a street corner, at a pawn shop, or in a 5th Avenue jewelery store.
What is the average cost of a 500 thread count King Size bedding set?
Normally this would cost about $350 but at the moment a website that begins with A and ends in N is selling one for $169.98, this is a large saving and should be considered considering the savings.
