Section 4 - Council Rock School District

Using what we learned from the Multiplication Counting Principle, there are or 840 PERMUTATIONS of these 7 letters taken 4 at a time. * We denote the number of permutations of 7 distinct items taken 4 at a time by: 7P4 * We can also express this product using factorials: 7P4 = * Evaluate 7P4 on the calculator: ................
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