THE NUMBER OF ARRANGEMENT S OF n OBJECTS TAKEN m AT A TIME IS DENOTED BY Select one: A_(m)^n O A_(n)^m O P_(n) P_(k) C_(n)

The correct answer is $A_{n}^{m}$.<br /><br />The number of arrangements of n objects taken m at a time is denoted by $A_{n}^{m}$, which represents the number of permutations of n objects taken m at a time. It is calculated as $A_{n}^{m} = \frac{n!}{(n-m)!}$, where n! represents the factorial of n.