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If A pizza restaurant offers 9 choices of vegetarian toppings for pizza In how many ways can you choose 4 toppings

If A pizza restaurant offers 9 choices of vegetarian toppings for pizza In how many ways can you choose 4 toppings
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If A pizza restaurant offers 9 choices of vegetarian toppings for pizza In how many ways can you choose 4 toppings

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User Brian Burns
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1 Answer

6 votes
You have to pay attention in this:
- The order doesn't matter
- No repetition
- You can not chose all available elements (just 4)
So in this case your formula must be: 9C4= 9!/(4!*(9-4)!) = 126 ways
answered
User Luc Bloom
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8.1k points
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