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7C1 * 8C1
in that order : \[7\times 8\]
is that the formula?
no that is the 'multiplication principle' which says if i can do one thing n ways and another thing m ways then the number of way i can do them both is n times m
like those problems that say you have 3 choice of appetizer, 4 of entrées and 2 desserts then you have 3*4*2 different possible meals
A department store manager wants to display 7 brands of a product along one shelf of an aisle. In how many ways can he arrange the brands? so you would do 7*1?
think that you have seven slots in which to put 7 items. you have 7 choices for the first one. so far 7 ways
now one brand is used and so you have 6 choices for the next slot. so far 7*6
now you have 5 choices for the fifth slot, 4 choices for the 4th etc. and you have to multiply all these together by the multiplication principle
answer is \[7\times 6\times 5\times 4\times 3\times 2 \times 1\]
this number is also written as 7!
ur awesome lol
i have a worksheet on scp im reading the textbook but it dosent break it down for me to good so im just trying to understand it
sequential counting principle
got it any more ?
o yea lol
got time for one more if you want to ask
At a high school cafeteria, diners can choose one vegetable from a choice of 4 vegetables, one meat from a choice of 3 meats, one serving of bread from among 4 breads, and a dessert from among 2 desserts. How many meal configurations are possible?
we just did this remember? look above!
i would do 4*3*4*2?
yes but what confused me is when it says choose one vegetable from a choice of 4 vegetables,
so i thougt i had to do the 4*3*2*1
yes one choice of the 4, so you have 4 choices. silly english i know, but that is what it means.
now i will go have lunch myself. you look to be in good shape for this.
have a good lunch.. wish i can buy for helping me