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Mathematics 19 Online
OpenStudy (anonymous):

@prodemis

OpenStudy (anonymous):

hold on.

OpenStudy (anonymous):

kk

OpenStudy (anonymous):

OpenStudy (anonymous):

Hmmmm 13 toppings, choose three (for the pizza question_ i think this is \[_{13}C_{3} = \frac{13!}{3!(13-3)!} = \frac{13\times12\times11}{3\times2\times1}\]

OpenStudy (anonymous):

can you check my answers for all the questions.

OpenStudy (anonymous):

286 for question 4

OpenStudy (anonymous):

number 5 looks like 9 choose 7

OpenStudy (anonymous):

5. 36

OpenStudy (anonymous):

4. 1

OpenStudy (anonymous):

that's what i got for 5 also, 36

OpenStudy (anonymous):

4. i got 286

OpenStudy (anonymous):

1. 70

OpenStudy (anonymous):

2. A

OpenStudy (anonymous):

idk what 3 is.

OpenStudy (anonymous):

ya 70 for 1

OpenStudy (anonymous):

2 is 87 billion or whatever that is

OpenStudy (anonymous):

14!

OpenStudy (anonymous):

I think 3 is permutation 12 permation 8 so 12!/8!

OpenStudy (anonymous):

11880

OpenStudy (anonymous):

I'm confused.

OpenStudy (anonymous):

is 11880 a choice???

OpenStudy (anonymous):

no.

OpenStudy (anonymous):

hmmm

OpenStudy (anonymous):

not sure sorry!

OpenStudy (anonymous):

i gtg go tho, doing a test

OpenStudy (anonymous):

so, 1. b 2. a 3. 4. c 5. d

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