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Use the permutation formula to solve a problem when n = 8 and r = 2.

A. 56
B. 672
C. 6,720
D. 40,320

Use the permutation formula to solve a problem when n = 8 and r = 2. A. 56 B. 672 C-example-1
User Ecesena
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2 Answers

6 votes

Answer:

A. 56

Explanation:

User Jukempff
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2 votes

Answer:

Option A. 56

Explanation:

From the question given above, the following data were obtained:

Total number (n) = 8

Item taken for permutation (r) = 2

Pemutation (P) =?

ₙPᵣ = n! / (n – r)!

₈P₂ = 8! / (8 – 2)!

₈P₂ = 8! / 6!

₈P₂ = 8 × 7 × 6! / 6!

₈P₂ = 8 × 7

₈P₂ = 56

User Raksha
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