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Answer: 60480
Step-by-step explanation:
Given : The number of empty seats in a theater = 9
The number of customers need to find places to sit =6
Since order matters here, so we use permutations
The permutations of n things taking r at a time is given by :-
Then, the number of ways to arrange 6 seat in 9 seats :-
Hence, the number of ways to arrange 6 seat in 9 seats = 60480
Answer:
56.1 cm²
Step-by-step explanation:
In any circle the area (A) of a sector is
A = area of circle × fraction of circle
= πr² ×
= π × 8.91² ×
= ≈ 56.1 cm²