Question

solve

Answer 1

sure

Answer 2

\[c _{18 12}\]

Answer 3

?

Answer 4

c=0

Answer 5

judging from your past questions...this has something to do with arithmetic/geometric sequence?

Answer 6

is that a wolfram answer again?

Answer 7

yeah it does

Answer 8

@katiebugg Please don't post a new question until you are done with your previous one.
Thanks :)

Answer 9

sorry i got the answer

Answer 10

i still dont get what this question means...and why the heck do people LOVE attaching "thanks" at the end of their statements o.O

Answer 11

i dont get it eaither... the question that is

Answer 12

@katiebugg I can see that you've posted similar questions. Did you understand the concepts involved?

Answer 13

@lgbasallote to sound polite
thanks:)

Answer 14

kinnda butt not really been upp all night doing this soooo

Answer 15

dont use it on me -_- it creeps and freaks me out

Answer 16

hahaha

Answer 17

@katiebugg are there any other conditions or phrases that come along with the question?

Answer 18

@katiebugg it's better to take rest now and start afresh tomorrow.

Answer 19

nope juse evaluate

Answer 20

and this has to bee done 2mrw sooo

Answer 21

can you write it in bigger text?

Answer 22

its a C then 18 and 12

Answer 23

but where are 18 and 12..beside C? below C? some of the placements are VERY important

Answer 24

umm subscripts

Answer 25

@katiebugg are you learning combinations?

Answer 26

yess!!!!!!

Answer 27

OH...that makes more sense =_=

Answer 28

sorry

Answer 29

\[\huge nCr = \frac{n!}{r!(n-r)!}\]
does that help?

Answer 30

ahhhhhhhh!!!!!!!! no

Answer 31

for example
\[3C2 = \frac{3!}{2!(3-2)!}\]

Answer 32

now does it help?

Answer 33

this is last one then get to go to bed and no ima still lost :(

Answer 34

here's another one...
\[12C10 \implies \frac{12!}{10!(12-10)!} \implies \frac{12!}{10!2!} \implies \frac{12 \times 11 \times \cancel{10!}}{\cancel{10!} 2!} \implies \frac{12 \times 11}{2 \times 1}\]
does that help?

Answer 35

how do i know were the 18 and the 12 go

Answer 36

the bigger one is always in the numerator

Answer 37

that's just how i remember it heh

Answer 38

k thaks!!!!!!!!

Answer 39

welcome ^_^

Answer 40

spamming random examples of solutions really does help huh...

Answer 41

:( no i got like the first step and now ima lost

Answer 42

oh btw....you're online schooled right?

Answer 43

just for summer i wanted to jump ahead
soo i took a class

Answer 44

hah i knew it..i could tell based on the random jumping of topics haha lol...anyway back to your question

Answer 45

what did you get for the first step?

Answer 46

umm 18/12(6)

Answer 47

hmmm you do mean \[\frac{18!}{12!6!}\]
right?

Answer 48

and u watchin my questions hahah creeper :P and yess

Answer 49

the exclamation points are very crucial...

Answer 50

heh it's my avatar duty :p

Answer 51

love that show ahahaha

Answer 52

okay here's a hint for you
\[\small 18! \implies 18 \times 17 \times 16 \times 15 \times 14 \times 13\times 12 \times 11 \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1\]
\[12! \implies 12 \times 11 \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1\]
\[6! \implies 6 \times 5 \times 4 \times 3 \times 2 \times 1\]
does that help?

Answer 53

just told me what the !!! do right

Answer 54

hmm?

Answer 55

okay here's another hint \[\large \frac{18!}{12! 6!} \implies \frac{18 \times 17 \times 16 \times 15 \times 14 \times 13 \times 12!}{(12!)(6!)}\]
does that help more?

Answer 56

look for something you can cancel..

Answer 57

and then

Answer 58

cancel the cancellable

Answer 59

ok i think