dylannsquats
17.10.2019 •
Mathematics
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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Ответ:
- 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
Ответ:
b)
Step-by-step explanation:
because B is halfed you do it one more time because it is 1 half smaller