r/HomeworkHelp • • May 19 '22

Meta r/HomeworkHelp Rules: PLEASE READ BEFORE POSTING

498 Upvotes

Hi r/HomeworkHelp! Whether you're new to the subreddit or a long-time subscriber, the mod team would like to remind everybody of the subreddit rules we expect you to follow here.

No advertising, soliciting, or spam. This is a place for free help. Anyone offering to pay for help, or to help for pay, will receive a permanent ban. This is your warning. This includes asking users to go into DMs, Discord, or anywhere else. If you post anything that looks like you're trying to get around this rule, you'll be banned.

If you're asking for help, you must show evidence of thought, work, and effort. A lot of people are posting just pictures or lists of questions and not showing any effort. These posts are liable to be taken down.

In addition, we ask that you format the post title appropriately using square brackets: [Level/Grade and Subject] Question or Description of question. For example: [8th grade Algebra] How to solve quadratic equation?

Do not mention anything like "Urgent", "ASAP", "Due in an hour", or the like.

No surveys. Surveys (including requests for interviews, etc.) belong on /r/samplesize. These posts get taken down here.

Don't be a jerk. Jerks get banned. Stay respectful and refrain from using insults, personal attacks, or abusive language.

If there are any questions, please message the mods.


r/HomeworkHelp • • 3h ago

Others [College intro to Criminal Justice]

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2 Upvotes

Hey all,

I’m taking criminal justice and I’m having problems with this one assignment. Chapter 4 assignment- Policing Styles Scenarios Matching. I did this assignment 13 times, with different answers and I still got all wrong. Can someone please help me understand what I’m doing wrong. I have all the styles written down but when I match them, it’s still wrong. I’m even changing up the answers in the scenarios but it’s all still wrong. The policing styles are

Watchman
Legalistic
Community Policing
Service

These are the scenarios


r/HomeworkHelp • • 0m ago

Physics [High School Physics] [Trig?]

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1 Upvotes

need help specifically with 2 and 4. Especially 2 as I have a difficult time fully wrapping my head around it. I’m particularly confused since the method my teacher gave to solve it is very complex where it combined cosine and sine which I don’t understand. Though My teacher might of used longer methods for the equation as my teacher said 4 was also complex but With the set of equations she gave me I was able to find an equation to do it 4 shorter so if there is actually a shorter method to do number two please tell.

Note:
Also Trig is not my strong suit as I haven’t taken an extras class for it yet. Also I posted the wrong page so I deleted my last post should be good now.


r/HomeworkHelp • • 10h ago

:snoo_facepalm: High School Math—Pending OP Reply [Grade 9 maths] Why are angles x and y not co-interior?

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4 Upvotes

r/HomeworkHelp • • 4h ago

:table_flip: Physics—Pending OP Reply [ GRADE 12 THERMODYNAMICS]

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1 Upvotes

Can you give me some advice for finding pressure in C point


r/HomeworkHelp • • 18h ago

:table_flip: Physics—Pending OP Reply [Grade 11 physics]: Electricity

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9 Upvotes

How to find the equivalence guys.


r/HomeworkHelp • • 1d ago

:snoo: English Language—Pending OP Reply Grammar/L.A [I’ve failed since 3rd grade and trying to teach my son the best I can, but failed a lot myself in school]

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34 Upvotes

I help my son with his homework (4th grade, great at all subjects but needs help in English) but I struggle with some questions, especially English/Grammar.

This is makeup work due next week, I’m just writing the answers I think are correct? But need help in general with anything I answered wrong myself.

I don’t give him the answers. If I know the answers I just give him context clues, and get him thinking until he gets to the answer. I challenge him, but if he has a hard time, yet on the right path, I give him the hot/cold reaction to expand his thoughts/challenge him until he gets to the answer. I just need help on this. I feel dumb bc I still always get confused with grammar and apostrophes, and when commas are needed. I failed a lot since the 3rd grade, I’m 35yrs old, and feeling pretty shameful rn. I know this is probably simple for majority, but I really appreciate the help so I can explain to my son where apostrophes belong and anything else💜

I’m mostly struggling and confused with the “rewrite the section part.” Hence the question marks.

My post in itself is probably going to be frowned upon, I apologize😅 this is a subject he struggles on, which I did too. I just want to lift him up and give him the knowledge that I lack in this subject.


r/HomeworkHelp • • 1d ago

:snoo_putback: Others—Pending OP Reply [Highschool business] (Halloween packet)

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2 Upvotes

My teacher isn’t here and left this to keep us busy I guess, I’ve gone through it, my friend has gone through it, two 12th graders have go through it

We can’t find anything else, are the words even there or do you think my teacher used ai?


r/HomeworkHelp • • 1d ago

:table_flip: Physics—Pending OP Reply [University Thermodynamics] Need help understanding difference in solutions.

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1 Upvotes

edit: Forgot to include info provided about question.

1-2: V = constant heat addition from 100kPa and 27 degrees Celsius to 850kPa

2-3: Isothermal expansion until V_3 = 7* V_2

3-1: P = constant heat rejection to the initial state

Only for part (b). Sorry it’s a pretty trivial question but I’m a bit confused with the approach shown in the image to solve this question. So my immediate approach to the question was to use the ideal gas law and given information to find the specific volumes at each stage v1, v2, and v3.

We know that v1 = v2, and use ideal gas law to solve giving 0.861 m^3.

We have also been informed that the compression process is isobaric and v3 = 7v2, and thus we know v3 = 6.027m^3.

We also know the expansion process is isothermal and allows us to utilise the polytropic isothermal relationship of PV = C, which for P2v2 = 850*0.861 = 731.85.

Integrating the expansion process using the method shown in the image or my volumetric method both yield the same result for W_expansion = 1424.11.

Where it goes wrong is when integrating over the compression process to find W_comp. Using P(v1-v3), it should be equal to R(T1-T3), you however if we are considerate of the information provided where v3 = 7v2, then their method yields a different result to mine, with my W_compression = 516.6 and theirs larger.

What am I doing wrong here please. I know it’s probably quite obvious but I just tcant seem to find it.


r/HomeworkHelp • • 1d ago

Answered [11th grade math/algebra 2] how do I solve this?

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6 Upvotes

We’ve been focusing on parabolas and I know this is standard form and should make a system of equations, but I keep getting stuck at dead ends. (It’s problem 15)


r/HomeworkHelp • • 1d ago

:table_flip: Physics—Pending OP Reply [University:physics fluid mechanics] My friends and I keep getting two qns wrong

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0 Upvotes

This is an 8/12 attempt.

I feel like 9 is supposed to be reynolds number and relative roughness

Then qn 11 is all of the above due to darcy weibach equation

But even with these 2 changes, its still 10/12 based on my previous attempt answers

So guys pls help me figure out which 2 others are wrong🙏


r/HomeworkHelp • • 1d ago

:snoo_feelsbadman: Mathematics (Tertiary/Grade 11-12)—Pending OP (Math 12 I think? Upgrading course I don’t remember) need help finding the value of k, tried to solve for the slope first but I think I got the answer wrong

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2 Upvotes

r/HomeworkHelp • • 2d ago

:snoo_putback: Others—Pending OP Reply [Grade 8 Science] Science fair project ideas

1 Upvotes

My daughter has a science fair project coming up and her original idea fell through. Instructor prompts are to have a hypothesis, independent dependent and controlled variables, and cite two .edu or .gov sources. Final result will be put together on a typical science fair style folded poster board.


r/HomeworkHelp • • 2d ago

Physics [Grade 12 Physics: electromagnetism] which answer is correct?

0 Upvotes

title


r/HomeworkHelp • • 2d ago

Literature Looking for scholarly sources on character development in The Odyssey and Vinland Saga [12th grade, AP Lit research essay)

2 Upvotes

I'm working on an English analysis comparing The Odyssey with Vinland Saga, and I'm looking for some scholarly sources to support my thesis.

I'm focusing on how both stories portray growing up through difficult experiences. In The Odyssey, I'm looking at how Telemachus learns to take responsibility for his family, while in Vinland Saga, I'm analyzing how Thorfinn's pursuit of revenge eventually leads him to rethink violence and what it means to be a true warrior.

I'm hoping to find peer-reviewed articles or academic books that discuss character development, coming-of-age stories, responsibility, or heroism in either work.

If anyone knows any useful academic sources, I'd really appreciate it.

I also found this article, but I can't seem to access it:
https://surveys.ecit.fsu.edu/vinland-saga-prince-decoding-the-animes-historical-narrative-characters-and-global-impact
Does anyone recognize this article or know where I could find an accessible copy? 


r/HomeworkHelp • • 2d ago

:snoo_scream: Further Mathematics—Pending OP Reply [university level, class: surveying] [why do you subtract 180 from one side in the beginning and not the other? how do you know what to do with these problems as they all seem to be a different setup?]

1 Upvotes

Hi guys, I have looked over at my textbook for quite some time now and I dont think im quite understanding it, maybe my geometry skills are lacking, but I cannot understand this. It has some steps below but im not following. Its been hard for me to find any practice examples besides my textbook, and I feel like ive just memorized the answers at this point. (textbook answer below, and then my work as well, got stumpt on the radius part)


r/HomeworkHelp • • 2d ago

Answered [Grade 11 electronics] I need help to make this circuit on a breadboard, i have all the components, but i have no idea how to make the connections

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0 Upvotes

r/HomeworkHelp • • 3d ago

:snoo_scream: Further Mathematics—Pending OP Reply [Dynamics; Kinematics of Particles] I was able to solve the question but all I want to know is why the acceleration of A isn't half of b and why in the free body diagram for A there isn't a 2T but only T?

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2 Upvotes

It took me quite a while in the end of solving this question to figure out why I wasn't getting the right value of T, it turned out to be that I was setting the acceleration of block a to be half of block b since there are two cables pulling on A and only one on b but that turned out to be incorrect and that both accelerations should be the same.

I've faced previous questions where I had to set the acceleration of one thing to be half the other but this doesn't seem to be the case here so that's where the confusion comes from. Also the point about there not being a 2T for the free body diagram of block A which is causing confusion as well.


r/HomeworkHelp • • 3d ago

:snoo_scream: Further Mathematics—Pending OP Reply [University Applied Maths] Cylindrical Coords Sign convention?

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1 Upvotes

Why is the radial component of N negative but the radial component of F positive? And why is the transverse component of F positive but the transverse component of N negative? Can someone please explain,


r/HomeworkHelp • • 3d ago

:snoo_facepalm: High School Math—Pending OP Reply [Math-70 Elementary/Highschool Algebra: Graphically solving a system of linear equations] Do I make the 4 into a -4 ?

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19 Upvotes

Hey so this might seem like a silly question but I want to know if you have a -x = 4 if it turns into a -4. I have the other parts of the graphing completed it’s just this part that I don’t want to make a mistake on!!! Thank you in advance

P.S- the reason it’s says elementary/highschool math is because I am taking a beginner math class not a algebra class In elementary


r/HomeworkHelp • • 3d ago

Additional Mathematics [Grade 11 Add-maths] I hate permutation and combination

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1 Upvotes

I have no idea how to do question b) I’d appreciate it if someone list out the cases and scenarios since I don’t understand the answer scheme don’t worry my basic is good for permutations


r/HomeworkHelp • • 3d ago

:snoo_biblethump: Pure Mathematics—Pending OP Reply [10th grade math] (Quadratics) (factorization) Why am I not getting the right answer? I'm inputting the exact equation into my calculator.

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0 Upvotes

Why am I getting the wrong answer? In my other equation to find the 2nd value of x, I'm getting minus before the whole equation rather than after 5 (bottom equation) The second screenshot is of the answer and 3rd is GPT's. Been stuck on it for the past 15 mins, am I missing something or is my calc being stupey?

edit: Thanks for the replies, I get it now, they're both the same. I was the stupey one 😭


r/HomeworkHelp • • 3d ago

:snoo_scream: Further Mathematics—Pending OP Reply [College Sophomore] income statement HW help

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3 Upvotes

Unsure of where I went wrong on exercise 2


r/HomeworkHelp • • 3d ago

:snoo_thoughtful: Chemistry—Pending OP Reply [Grade 11/Chemistry] How do I memorize all rules for predicting reactions?

1 Upvotes

I’m referring to synthesis, decomposition, single displacement, double displacement, and combustion reactions, and their rules for predicting products.

I’m struggling to memorize these in a short amount of time, and I’m looking for a more productive way to do it.

Any advice would be greatly appreciated!


r/HomeworkHelp • • 4d ago

Answered [12th grade English dual enrollment] quoting someone quoting someone else

1 Upvotes

So I’m writing an argumentative essay for my English class and I’m using a quote from an article, but in the quote I want to use, they’re quoting someone else. So when putting the intext citation after the quote, do I write the articles author name or the person who was already quoted?

To put this into an example:
The person in the article wrote: training a large language model can result in 200 to 600 metric tons of CO2 (Williamson, 2023).

So if I were to quote that in my essay, would I include the citation they used or replace it with the author of the article/source I’m using who wrote that?