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For a segment of a radio show , a disc jockey can play 7 records . If there are 9 records to select from , in how many ways can the program for this segment be arranged ?
For a segment of a radio show , a disc jockey can play 7 records . If there are 9 records to select from , in how many ways can the program for this segment be arranged ?
Answer:181,440Step-by-step explanation:...
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