## jennwatso15 Group Title how many different permutations are thereof the set {a, b, c, d, e, f, g} one year ago one year ago

1. satellite73

seven elements in the set, so $$7!$$ i.e. seven factorial

2. satellite73

$7!=7\times 6\times 5\times 4\times 3\times 2\times 1$

3. goformit100

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4. goformit100

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5. satellite73

seven choices for the first number then six for the second five for the third four for the fourth 3 for the fifth 2 for the sixth 1 for the last counting principle tells you to multiply the number of choices together

6. jennwatso15

thats what i thought but its always good to double check because this book doesn't have the answers in the back thanks :D