anonymous
  • anonymous
Need Help! Its a combination problem.5
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
FireKat97
  • FireKat97
I don't think your factorial equation is right... follow this format \[\frac{ n! }{ k! (n-k)! }\] and try simplifying now
anonymous
  • anonymous
15! / 15! (5-15)!
anonymous
  • anonymous
On my notes it says nCk = n!/(n-k)! k! so id rather do it that way :) but it would still be the same way right?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

FireKat97
  • FireKat97
Wait actually
anonymous
  • anonymous
I wrote the wrong number.. I just need to figure out how to simplify 15C5
anonymous
  • anonymous
its supposed to be 3003 but idk how? I can do it from a calculator, but on a quiz i need to be able to show my work
FireKat97
  • FireKat97
You would get 15!/ 15!. -10! that way and I don't think you should have a negative factorial
anonymous
  • anonymous
I got 15!/10! 5!
FireKat97
  • FireKat97
yup thats right
anonymous
  • anonymous
|dw:1442908599294:dw|
anonymous
  • anonymous
The way i simplified it was 15 14 13 12 11 10 _________________________ 10 5 4 3 2 1 I crossed out the 10's and then from there it doesnt seem right, but its the way my teacher taught us. so for ex, 5 *3 = 15 7*2 = 14
anonymous
  • anonymous
so then 3 would go on top of the 15 and the 7 would go on top of the 14
FireKat97
  • FireKat97
yeah I did the same, then you can cancel a few other things out as well
FireKat97
  • FireKat97
yup seems right so far
anonymous
  • anonymous
thats where im stuck because i cant get 3003 if i do then it would be 3 * 7 * 11 *13 but what happens to the 12?
FireKat97
  • FireKat97
so answer is 3003 right?
anonymous
  • anonymous
yes
FireKat97
  • FireKat97
okay so you have \[\frac{ 15 . 14. 13. 12. 11 }{ 5. 4. 3. 2. 1}\]
anonymous
  • anonymous
yes
FireKat97
  • FireKat97
|dw:1442908920946:dw|
FireKat97
  • FireKat97
do you follow what I did there?
anonymous
  • anonymous
is that a 4?
anonymous
  • anonymous
above the 12?
FireKat97
  • FireKat97
yea
anonymous
  • anonymous
okay yeah i understand so far
FireKat97
  • FireKat97
and it cancels with the 4 below
FireKat97
  • FireKat97
yup so now we have left 3 x 7 x 13 x 11
anonymous
  • anonymous
OHH LOL OKAY I GET IT NOW ! AHHHH okay i was doing it right then
FireKat97
  • FireKat97
yup you were right all along ahahahha :D
anonymous
  • anonymous
wait what happend to the 3? Lol
FireKat97
  • FireKat97
the bottom one got cancelled to make the 12 on top into a 4
anonymous
  • anonymous
ooookay yay! thanks :)
FireKat97
  • FireKat97
haha no problem :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.