jackie36390 jackie36390

10-02-2019
Mathematics

contestada

I need help u guys plzz?

I need help u guys plzz class=

Respuesta :

giraffe72663 giraffe72663

10-02-2019

Answer:

90

Step-by-step explanation:

10!/(10-2)!

n!=n(n-1)!

10•9•8!/(10-2)!

10•9•8!/8!

The 8! cancels out and you're left with 10•9

So, your answer is 90

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