# Activity Stream

• Today, 08:10 PM
A many a textbook calls this the "MISSISSIPPI" problem. How ways can you rearrange that word? If it were MI_1S_1S_2I_2S_3S_4I_3P_1P_2I_4 it is no...
1 replies | 11 view(s)
• Today, 07:24 PM
Given this question, the part im hung up on is the "can not be distinguished part" I would think you would take 14 total and split into ...
1 replies | 11 view(s)
• Today, 06:59 PM
nvm i got it! https://i.imgur.com/lz1dmIl.jpg its all about not subtracting that 1 X2 ball in the beginning, and handling it in the cases.
1 replies | 11 view(s)
• Today, 06:46 PM
NEVERMIND SOLVED ---Post can be deleted---- Hello again math world! I am stumped on part d) of a question concerning a very particular set of...
1 replies | 11 view(s)
• Today, 06:30 PM
Okay, Thanks The idea that were counting different choices not items is what i think i was searching for. this clears it up alot. also the...
7 replies | 77 view(s)
• Today, 06:10 PM
A common trick for this sort of thing is to bring in a*b, which can act as a bridge between a*a and b*b. For example, try adding that to each side of...
1 replies | 31 view(s)
• Today, 06:01 PM
Well, here's a formula that'll give present value of an annuity where the payment is increased by a constant amount: PV = {i* + c*r*} / (i^2 *...
10 replies | 321 view(s)
• Today, 05:46 PM
That threw me. Eleventh element = sodium = Na.
7 replies | 294 view(s)
• Today, 05:43 PM
I've seen this one before - it's one of my favourites. But seeing as I wasn't invited to the party :cry:, I'll see how you run.
17 replies | 185 view(s)
• Today, 05:27 PM
I noticed above that you used i = 0.0125 which is 0.05/4. Shouldn't it be 0.05/3 as there are 3 lots of "4 months" in a year?? EDIT: Ok forget...
10 replies | 321 view(s)
• Today, 04:51 PM
Hey. Given the field F, Prove: * For any a, b in F, if a*a=b*b, then a=b or a=-b * For any a, b in F, if a*a*a = b*b*b, then a=b Given the...
1 replies | 31 view(s)
• Today, 04:49 PM
MarkFL replied to a thread CodeCogs Jam Up in Math Odds & Ends
Sometimes it is the result of a user posting on a mobile device, and to them the image is oriented correctly.
24 replies | 324 view(s)
• Today, 04:48 PM
No, EBCD is not a permutation of ALL of the letters; it is a permutation of only 4 of the 7 letters. The question asks for permutations of the...
7 replies | 77 view(s)
• Today, 04:33 PM
If you would like help with an exercise, please consider starting your own thread. Familiarize yourself with the forum's guidelines, first. We do not...
3 replies | 1388 view(s)
• Today, 04:27 PM
3 replies | 1388 view(s)
• Today, 04:27 PM
24 replies | 324 view(s)
• Today, 04:23 PM
pka replied to a thread CodeCogs Jam Up in Math Odds & Ends
Posting images sideways and/or upside-down is not a simple mistake. It is a disregard for the person(s) from whom one is asking for help.
24 replies | 324 view(s)
• Today, 04:22 PM
I do not know if that (careless inconsiderate post) irks too many other people (to justify death-penalty)!! I just don't try to respond to those to...
24 replies | 324 view(s)
• Today, 04:14 PM
Here is a very useful website for looking up mathematical terms & concepts/ Because you are coming back, if I were you I wound bookmark the site....
7 replies | 77 view(s)
• Today, 04:10 PM
:idea: You have the power!
24 replies | 324 view(s)
• Today, 04:08 PM
I perceived the intent as yet another reminder from pka to the membership of his superior mathematical knowledge and experience. :idea: It...
24 replies | 324 view(s)
• Today, 04:01 PM
Okay, will do. As you extend the vector form of taylor approximation (https://i.imgur.com/oWugmLO.png) beyond second degree, does each new term...
5 replies | 219 view(s)
• Today, 04:01 PM
Hmm, sorry its hard to explain. No i wasn't taught any of this, im trying to basically figure it out on my own. before we get into what im asking...
7 replies | 77 view(s)
• Today, 03:58 PM
I feel your pain. :) At the sites I help admin, I sometimes get frustrated when I see a thread in the wrong forum (or has some other issue to be...
2 replies | 181 view(s)
• Today, 03:58 PM
We do not provide such a service. Please familiarize yourself with the forum's guidelines. Thank you! :cool:
1 replies | 35 view(s)
• Today, 03:53 PM
:idea: You'll get better help faster here, if you show some effort. Please familiarize yourself with the forum's guidelines. Thanks! :cool:
2 replies | 104 view(s)
• Today, 03:48 PM
JeffM replied to a thread CodeCogs Jam Up in Math Odds & Ends
MarkFL, Oh I eventually figured that out. But pka appeared to be making a serious argument. I'd argue that someone posting numerous times...
24 replies | 324 view(s)
• Today, 03:47 PM
If you'd like to discuss specific videos going forward, please also provide an example link. My first thought was along the lines of tkhunny's...
5 replies | 219 view(s)
• Today, 03:45 PM
Please answer this for me! The marketing manager of a firm that produces laundry products decides to test market a new laundry product in each of...
1 replies | 35 view(s)
• Today, 03:41 PM
If anyone needs help understanding the forum software, please post a request on the Adminisrative Issues board. I will try to help. :cool:
2 replies | 181 view(s)
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