SOLUTION:
For a segment of a radio​ show, a disc jockey can play 9
records. If there are 13
records to select​ from, in how many ways can the program for this segment
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Question 1107118:
For a segment of a radio show, a disc jockey can play 9
records. If there are 13
records to select from, in how many ways can the program for this segment be arranged?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
For a segment of a radio show, a disc jockey can play 9 records. If there are 13 records to select from, in how many ways can the program for this segment be arranged?
===============
If he can play the same one 9 times, it's 13^9 = 10,604,499,373 ways.
----
With no repeats, and if order matters::
The 1st choice is 1 of 13
then 1 of 12, etc
--> 13*12*11*10*9*8*7*6*5
= 13!/4!
= 259,459,200 ways
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