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Alexeev081 [22]
3 years ago
9

Springdale Junior High has two students, Ashley and Taylor, that qualified for the regional track meet in the 800 meter dash. Th

e final race has only four spots available. Both Ashley and Taylor earned a spot in the final.
Mathematics
1 answer:
Svetach [21]3 years ago
4 0
I assume you want to know a permutation about how many ways they can be in the final set-up.

Order matters, which is why this is a permutation.

Formula: P(n, r) = \frac{n!}{(n-r)!}

where the permutation is n^{P} k, with P for permutation.

Plug in:

4!/(4-2)!
4!/2!
(1 x 2 x 3 x 4)/1 x 2
(3x4)/1
= 12

12 ways.
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