Slope of (10,-61,) and (-7,58)
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Answer:
The number of different schedules possible is given by:
In which n is the number of European cities that Betty would eventually like to visit.
Step-by-step explanation:
The order in which the cities are visited is important, for example, visiting Paris on Monday and London on Tuesday is a different schedule than London on Monday and Paris on Tuesday. This means that the permutations formula is used to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
She wants to visit n cities on 3 days:
So the number of different schedules possible is given by:
In which n is the number of European cities that Betty would eventually like to visit.