2337911726
28.02.2020 •
Mathematics
There are 120 athletes at a meeting. They
each give a Valentine's Day card to
everyone else. How many cards were
given?
A) Permutation; 2,856
B) Permutation; 14,280
C) Combination; 7,140
D) Permutation; 4,760
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Ответ:
when you simplify the very hard to complicated expression above i think the answer will come out to:
(-3mn/2) + (m/3) - 4