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BRAINLIEST KO AGAD MAKA SAGOT

2. Caraga Got Talent Online has declared 10 lucky singers who passed the online audition and are qualified for the semi-final round. Suppose the first and last singers were already determined by the judges. How many possible ways can the singers be arranged for the online showdown?​


Sagot :

Answer:

40320 ways

Step-by-step explanation:

There are 10 lucky winners.

If the 1st and last place is already determined who, then...

1 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 × 1

8 × 7 × 6 × 5 × 4 × 3 × 2 × 1

56 × 6 × 5 × 4 × 3 × 2 × 1

336 × 5 × 4 × 3 × 2 × 1

1680 × 4 × 3 × 2 × 1

6720 × 3 × 2 × 1

20160 × 2 = 40320 ways