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Mathematics, 22.02.2021 16:40 asia5291

1) Trés empresas devem ser contratadas para realizar quatro trabalhos distintos em um condominio. Cada trabalho será atribuido a uma única empresa e todas elas devem ser contratadas. De quantas maneiras distintas
podem ser distribuidos os trabalhos?
b) 18
C) 36
d) 72
a) 12
e) 108​

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