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dyhji
02.12.2019 •
Mathematics
How many diferrent 9-letter words (real or imaginary) can be formed from the letters in the word economics?
the ans. must be 90,720
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Ответ:
10! / 2!2! = 10! / 2 x 2 = 3628800 / 4 = 907200
Ответ:
A
Step-by-step explanation:
Those who prefer regular crust pizza tend to prefer pepperoni pizza.