Answer:
1)B
2) Acute angle
3) KJL LJK i don't know the last one
Step-by-step explanation:
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:87 seats are empty
Step-by-step explanation: