alyssa7564 alyssa7564

23-05-2022
Mathematics

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Dr orchid has 9 paintings she wants to hang side by side on her wall...

Dr orchid has 9 paintings she wants to hang side by side on her wall class=

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Аноним Аноним

23-05-2022

Answer:

See below ~

Step-by-step explanation:

(a) No. of ways :

9! ways
9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
72 x 63 x 20 x 6
1540 x 378
582,120 ways

(b) No. of ways :

9 x 8 x 7 x 6
72 x 63
4,536 ways

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