If B= -9 and c= - 1/2 , what does bc- c equal? A) -5 B) -4 C) 4 D) 5
2 answers:
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Answer:
1440 different arrangements are possible.
Step-by-step explanation:
Number of arrangements of n elements:
The number of arrangements of n elements is given by:
In this question:
6 couples, in which each can be positioned in 2 ways(him/her or her/him). So
1440 different arrangements are possible.