Step-by-step explanation:



Answer:

Step-by-step explanation:
=> 
=> 
<u><em>Cancelling (x-1)</em></u>
=> 
=> 
In a sequence of events, the
total possible number of ways all events can performed is the product of the
possible number of ways each individual event can be performed. Since there
are 10 openings
<span>P = 40 x 39 x 38 x 37 x 36 x 35
x 34 x 33 x 32 x 31 = 3.07599 x 10^15 different combinations</span>
Its the second one. The inverse is the opposite of the original
Answer:
i would go with B but let me know if im right or not
Step-by-step explanation:
sorry if its wrong