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B. In how many ways can Aling Rosa arrange 6 potted plants in a row taken 4 at a time?
n=
r=​

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Answer:

In how many ways can Aling Rosa arrange 6 potted plants in a row taken 4 at a time?

n= 6

r= 4

Solution:

  • [tex] P(6,4)=\frac{n!}{(n - r)!} [/tex]
  • [tex] P(6,4)=\frac{6!}{(6 - 4)!} [/tex]
  • [tex] P(6,4)=\frac{6!}{2!} [/tex]
  • [tex] P(6,4)=\frac{6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1} [/tex]
  • [tex] P(6,4)=360 [/tex]

□ There are 360 ways.

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