Which polygon is a pentagon?
1 answer:
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Number of ways can the runners finish first, second, and third is 1,17,600 .
<u>Step-by-step explanation:</u>
Permutation is the act of arranging the members of a set into a sequence or order, or, if the set is already ordered, rearranging (reordering) its elements—a process called permuting. For example, written as tuples, there are six permutations of the set {1,2,3}, namely: (1,2,3), (1,3,2), (2,1,3), (2,3,1), (3,1,2), and (3,2,1). Formula of Permutation is : where n is the number of things to choose from, and we choose r of them, no repetitions, order matters. Here , n = 50 , r= 3
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∴ Number of ways can the runners finish first, second, and third is 1,17,600 .
Answer:
8
Step-by-step explanation:
a A + b A where A is a matrix and a and b are scalars
( a+b) A
3+5 = 8