Question

help

Answer 1

@wio He loves these kinds of things :P

Answer 2

where soes the 8 come from

Answer 3

does*

Answer 4

\(15-7=8\)

Answer 5

oh lol

Answer 6

yup

Answer 7

so b ??

Answer 8

Tell me. Do you think the answer should be a fraction or a whole number?

Answer 9

a whole number but thats not what the question calls for

Answer 10

Well, which of the answers is actually a whole number? Are they all whole numbers?

Answer 11

i didnt do it but prolly c ??

Answer 12

You are really phoning this one in, aren't you?

Answer 13

k one sec let me do it

Answer 14

First of all, you should learn the general formula.

Answer 15

well c isnt a whole number

Answer 16

Do you know the general formula as wio mentioned?

Answer 17

like this 9!

9*8*7*6*5*4*3*2*1

Answer 18

?

Answer 19

@wio

Answer 20

No, the formula for the number of ways to choose \(k\) objects from \(n\) objects is \[
{n \choose k} = \frac{n!}{k!(n-k)!}
\]

Answer 21

You should have learned this by the time you came across this question.

Answer 22

oh i knew that XD

Answer 23

We have \(n=15\) and \(k=7\).

Answer 24

sorry lol

Answer 25

you want me to solve ??