Answer :
Answer:
There are C(9, 4) = 126 ways to complete this task
Step-by-step explanation:
Given : Komi has 9 differently colored square tiles, and he wants to put four of them together to create a larger square consisting of four tiles.
To Find : Are there P(9, 4) or C(9, 4) ways to complete this task?
Solution:
Total different squares = 9
No. of squares required to form a larger square = 4
Since no sequence or order of selection is given .
So, we will use combination over here i.e. C(9,4)
Formula : [tex]C(n,r) = \frac{n!}{r!(n-r)!}[/tex]
[tex]C(9,4) = \frac{9!}{4!(9-4)!}[/tex]
[tex]C(9,4) = \frac{9!}{4!(5)!}[/tex]
[tex]C(9,4) =126[/tex]
So, There are C(9, 4) = 126 ways to complete this task