How many subsets of five elements each can be made from a set of seven elements?

42
14
21

Question

How many subsets of five elements each can be made from a set of seven elements?

42
14
21

ledock2023 · Answer

what is up

ElexusQuimby · Answer

not much u

ledock2023 · Answer

I am in Eire

ElexusQuimby · Answer

Wow.  Is it nice there?

ledock2023 · Answer

in the 60dys

ElexusQuimby · Answer

Lucky. It is windier than crap here. And its winter as well. So it is cold.

ledock2023 · Answer

it is spring up here so it worm

NotLeiland · Answer

Questions are not for chatting. If you wish to socialize, refer to DMs or the All Subjects chat at the bottom left corner of your screen. @elexusquimby  @ledock2023

ElexusQuimby · Answer

@notleiland wrote:

Questions are not for chatting. If you wish to socialize, refer to DMs or the All Subjects chat at the bottom left corner of your screen. @elexusquimby @ledock2023

Sorry. I was just being polite since they did it first. Won't happen again.

NotLeiland · Answer

@elexusquimby wrote:

@notleiland wrote:

Questions are not for chatting. If you wish to socialize, refer to DMs or the All Subjects chat at the bottom left corner of your screen. @elexusquimby @ledock2023

Sorry. I was just being polite since they did it first. Won't happen again.

All good. Now for your question. Is this for chemistry?

ElexusQuimby · Answer

No it is for math. Combinations: Applications

NotLeiland · Answer

Not my level of math yet... but I do know of someone that might be able to help you!
@jhonyy9

ledock2023 · Answer

how old are you

ElexusQuimby · Answer

@notleiland wrote:

Not my level of math yet... but I do know of someone that might be able to help you! @jhonyy9

Okay thank you.

ElexusQuimby · Answer

@ledock2023 wrote:

how old are you

Talk on the dms.

jhonyy9 · Answer

$$C_{7}^{5} = ?$$

did you learn about this ?

ElexusQuimby · Answer

Im learning it right now.  In algebra.  But I a working on Combinations: Binomial Coefficients.

jhonyy9 · Answer

this noted above mean combiation of 7 in subsets of 5

jhonyy9 · Answer

this has a formula

ElexusQuimby · Answer

Oh so it is the C(7,5)?

jhonyy9 · Answer

@jhonyy9 wrote:

$$C_{7}^{5} = ?$$ did you learn about this ?

I ve learn it in this above wrote form

ElexusQuimby · Answer

It is not written like that for me.  Probably because of the website that I do my school work on

jhonyy9 · Answer

probably but do you know it sure that C(7,5) mean combination of seven elements in subsets of 5 ?

ElexusQuimby · Answer

Yes, I believe that it is what it means.

jhonyy9 · Answer

@laylalyssa do you know this notification please ? is the same like my above wrote ?

ElexusQuimby · Answer

We already finished the assignment.  I got a 100 with the answer I was given by somebody.  Now I am on to another question I need assistance with.  Please.

Laylalyssa · Answer

use the combination formula 7=n and 5=r and you'll get 21 subsets can be created

ElexusQuimby · Answer

thats the answer we got.