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36 votes
36 votes
PLEASEEEE PLEASEEEEEEEEE HELPPPPPPPPPP
how do i solve this equation?

PLEASEEEE PLEASEEEEEEEEE HELPPPPPPPPPP how do i solve this equation?-example-1
User Stephen Croft
by
2.7k points

1 Answer

13 votes
13 votes

Answer:

360

Explanation:

using the definition

n
P_(r) =
(n!)/((n-r)!)

where n! = n(n - 1)(n - 2)..... × 3 × 2 × 1

then

6
P_(4)

=
(6!)/((6-4)!)

=
(6!)/(2!)

=
(6(5)(4)(3(2)(1))/(2(1)) ← cancel 2(1) on numerator / denominator

= 6 × 5 × 4 × 3

= 360

User Therealjohn
by
2.7k points