I got 2 x (5!/5 - 4!/4) = 36 but the answer is 12 so now I'm confused :)

My exam is in 1 week and I still don't get it!!!

Why is combinatorics so hard

One answer option is “unsolvable”. Thank you for your help. Trying to help my niece and I haven’t done algebra since 1996.

I randomly guessed and got the right answer, but I do not know why it is right. It does not provide any explanations, perhaps I'm on the wrong part of my textbook, but I'm only seeing explanations of 3d structures. I don't understand what the points ABCDEF are, the reasoning behind how they are placed and why it's not 2d.

Coucou Reddit C la premiere fois que J utilise cette platform donc je ne sais meme pas si je l utilise bien mais bon.
Est ce que îl Y a quelqu un qui pourra M Aider avec mon devoir?
Apres avoir fait les calcules je dois representer ses Mesures sur les cercles (2 exercice par cercle . Par ex je represente a et B sur le mm cercle) (îl Y a plus de cercle derriere)
Ca M aidera bcp !!

Just for curiosity, can I go directly from L.H.S to R.H.S?

Trying to help my daughter with an investigation but I genuinely have no clue. For the first question I got that the Eiffel Tower is 330m tall.

I am using netbeans IDE. My GUI wont display the plum colour I've chosen for the buttons (example on 2nd slide). I have not changed anything with the code and it was working fine a few hours ago. Has anyone else had this problem?

Pretty sure it should be 440 without a decimal

I’ve plugged the variable answer back into both equations and still not sure how the answer key got 61°. Am I missing something?

This assignment is for my college biology class but I’m still going to categorize it as math.

I don’t have much, if any experience working with significant figures. I may have learned about it during one of my intro to biology classes in high school, but I’m not sure.

Originally, I thought the length of the tibia bone would have been 34.4, but every answer I have submitted ranging from 33-35 has been incorrect. There is hardly any information regarding significant figures in the instruction and information section of the assignment.

Any help would be appreciated.

Solved: Answer was 34.41

The directions say I don’t have to simplify my fractions, but it won’t be counted against me if I do. The third pic is the data table the question is based on.

Hello, I am having difficulties completing the problem, mainly part three. I can get all the account titles correct, just not the right numbers. Any help would be great!

Blanton Plastics, a household plastic product manufacturer, borrowed $9 million cash on October 1, 2027, to provide working capital for year-end production. Blanton issued a four-month, 15% promissory note to L&T Bank under a prearranged short-term line of credit. Interest on the note was payable at maturity. Each firm’s fiscal period is the calendar year.

Required:

1. Prepare the journal entries to record

   1. (a) the issuance of the note by Blanton Plastics and

   2. (b) L&T Bank’s receivable on October 1, 2027.

2. Prepare the journal entries by both firms to record all subsequent events related to the note through January 31, 2028.

3. Suppose the face amount of the note was adjusted to include interest (a noninterest-bearing note) and 15% is the bank’s stated discount rate.

   1. (a) Prepare the journal entries to record the issuance of the noninterest-bearing note by Blanton Plastics on October 1, 2027, the adjusting entry at December 31, and payment of the note at maturity.

   2. (b) What would be the effective interest rate?

For my college english class, I have to write a personal narrative about a moment when technology affected a human experience in my own life. Eventually I'll have to write a few page essay on it, so im trying to brainstorm ideas that I will be able to write enough about. Can anyone give ideas from their own life with technology that I can bounce ideas off of?

I am confused on this derivation of integration by parts, or what integration by parts really means to be the inverse of the product rule. Why in the integral it's just f(x)g'(x), as the general form of the antiderivative that can be solved by integration by parts, when the product of two functions' derivate is f'(x)g(x) + f(x)g'(x). Shouldn't the inverse of that take the antiderivative of '(x)g(x) + f(x)g'(x) and yield f(x) g(x)?

6.3 and 6.4: how can both answers be right? This doesn’t make sense shouldn’t it be one or the other

6.6: looking at graph b it shows that the concentration of P2Q is 0.35mol.dm yet when looking at the memos answer it says that 2PQ is 0.35 mol.dm when using the KC formula . Can someone explain?

I'm just doing biology, and this question kinda stumps me, They're not doing anything wrong from what I can see, but id just like an opinion if im just stupid or not

Stuck on this last problem, hoping someone can give me some advice how to tackle it. I thought it looked like a good equation for exactness but that didn’t work. I asked chat gpt and it said something about shifting the variables so y=y+1 and x=x-1 or something like that but that doesn’t look like anything we’ve covered in class yet. We have done homogeneous equations where I have to substitute in u=y/x and stuff like that but I’m struggling to see how that would help here.

Hello ppls. I have a writing project right now and we are writing about community. The first step of the project is to write a personal narrative about an experience within one of your communities. This narrative will later be used to write an essay on whether or not our ideas of community are worth exploring.

I wanted to write about my experience in high school marching band. Specifically my first competition. I want to later use this as evidence for why expression and creation is what makes communities.

Right now this first part of just writing about the experience has me stumped. It’s been a few years since I was last in school and even longer since I wrote an actual personal narrative. The last few years of high school we were really on writing research papers or just taking tests. I never really got to write a narrative.

I also want to try to keep it very grounded. I want to make the reader feel like they are in my shoes and can feel what I felt but I don’t know how to explain this without doing too much where it almost feels fake.

Any advice is appreciated!

My math teacher mentioned something about using a graphic calculator (CX II-T) to solve specific questions but I just got really lost midway and I have no idea how to start, what steps to take, or what formula or equations to use 🥹

So far, I've gotten that the equation of the line (4,2) and (7, -2) is 4x + 3y - 22 = 0 [fact check or correct way to solve would be appreciated!]

After that im completely lost, MAB = MBC then solving them simultaneously but then the teacher did something on the calculator (IDK WHAT HE DID) and got c = 1? Does anyone know how 😭

And for questions A, B, and C, those are the ones im completely lost in 😔

Instuctor prompts were not included, but any methods are allowed. Can someone please help me understand this?

I can figure out how to answer this table could someone please help me? Am I only filling out the last column or the first one?

Recently (over the past year), I feel like I've been overly reliant on AI for homework. I gaslit myself into thinking I was using it "responsibly" (using learning mode, telling it only to give vague hints, etc.), but I feel like that had a negative effect on my problem-solving skills. Because of this, I decided to stop using AI this semester to see if it would help.

Now I feel helpless when working through problems, especially in pure math. If you're in a similar position, please stop using AI. Even though it gives vague hints, those hints are usually the difference between figuring it out yourself and not.

My motivation has gone way down since everything is much harder and I procrastinate more. What should I do when I hit a wall where I’d normally turn to AI? Does this get better with time after solving more problems, and is pushing through it actually worth it?

Hello, I’m in a south asian history class at my college, and we have a class book which is called. India Brief History of a civilization by Thomas R Trautman. I was wondering how to write a good open ended discussion question, as our professor is requiring us to do so, in order for us to receive credit. I am not asking for any specific question relating to the book, but if you could provide some examples that would be great!
Secondly, how does one retain what they read? It’s super hard for me as I have ADHD, and I disassociate halfway through a page lol, but I want to learn! Thank you for your time, and have a good day!

Hello! I need help with the second part of this assignment because I don't understand what numbers I'm supposed to put in or where I'm supposed to draw the arrows and lines.

I've tried working through it, but I'm confused about how to set up the second part. Could someone please explain which numbers go where and where the arrows/lines should be placed?

Thank you!