sandrinedionne7153
16.04.2020 •
Mathematics
What is 30 times 2 hi someone please answer this pls
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Ответ:
Permutation
504 ways
Step-by-step explanation:
The difference between combinations and permutations is ordering. With permutations we DO care about the order of the elements, whereas with combinations we don't.
In your graphing calculator, type
nPr(9,3)
(9 letters in trapezoid, 3 letter combos)
and it returns 504.