if you convert it all to inches (3 inches scale per 24 inches actual, and the height of the shelf becomes 72 inches actual), you can set up a proportion (3/24)=(x/72) (x being the scaled height of shelf) then cross multiply and divide (3*72)/24=x x = 9 inches
6! = 1 x 2 x 3 x 4 x 5 x 6.
6 x 5 x 4 x 3 x 2 x 1 = 720 ways
8! = 8 x 7 x 6 x 5 x 4 x 3 x 2 = 40,320 ways !
It depends on how many shelves there are, which you did not specify. Please restate the question. Assuming that there are just 2 shelves with 21 books on each, then the 21 books on the top shelf can be arranged in factorial 21 different ways, with the same result for the lower shelf. To find "factorial 21", which is written as 21! the calculation required is 21 x 20 x 19 x 18....and so on all the way down to ...x 3 x 2 x 1! However, with access to a scientific calculator the result for 21!can be found by first pressing the buttons for 21 followed by pressing the button labelled n!, which gives the result for 21! as 5109094217109440000 for each shelf. The result for the two shelves is 21! x 21! which is such a tremendous number that no-one could arrange books in that way if they spent their whole life at it (including from birth).
Am-x is an off-the-shelf material consisting of a mixture of amorphous aluminium hydroxyphosphate sulfate and calcium sodium phosphosilicate. It is commonly used in oral care products for its abilities to protect teeth from acid erosion and promote enamel remineralization.
The union of sets X and Y is the set consisting of all elements that belong to X, or belong to Y or to both.The union of sets X and Y is the set consisting of all elements that belong to X, or belong to Y or to both.The union of sets X and Y is the set consisting of all elements that belong to X, or belong to Y or to both.The union of sets X and Y is the set consisting of all elements that belong to X, or belong to Y or to both.
5 books can be lined up on a shelf in (5 x 4 x 3 x 2 x 1) = 120 different sequences.
Monomial consisting of one term ( 3x ) , Binomial consisting of two terms ( x + y ), Trinomial consisting of three terms ( 3x+4x+5xy ), and Multinomial consisting of three or more terms.
in you spy spooky night on page 18-19 the X is on the left page on the middle shelf on the vary left of that shelf there is a map look near the bottom of the map and you'll see an X.
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.
if you convert it all to inches (3 inches scale per 24 inches actual, and the height of the shelf becomes 72 inches actual), you can set up a proportion (3/24)=(x/72) (x being the scaled height of shelf) then cross multiply and divide (3*72)/24=x x = 9 inches
6! = 1 x 2 x 3 x 4 x 5 x 6.
Theorem: A number of permutation (the possible arrangements) of n distinct objects is n!Answer: There are 5! = 5 x 4 x 3 x 2 x 1 = 120 ways in which the five cereal boxes can be arranged in a shelf.
5! = 5 x 4 x 3 x 2 x 1 = 120 ways.
9 x 8 x 7 x 6 x 5
6 x 5 x 4 x 3 x 2 x 1 = 720 ways