/r/HomeworkHelp

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Need help with homework? We're here for you! The purpose of this subreddit is to help you learn (not complete your last-minute homework), and our rules are designed to reinforce this.

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❗️ READ THE RULES BEFORE POSTING

>> Get help now! <<

Welcome to /r/HomeworkHelp!

We are one of the most unique subreddits on Reddit, one of the few subreddits that continually self-improve itself to make communications between a contributor and an asker as effective as possible.

Our rules are designed to help you get to the right answer, enforced by your fellow Redditors.

Please google before posting your question

 

 

✅ Posts should look like this:

The title should be of the form [<Level/Syllabus><Discipline>and/or<Topic>] <Question>? For example:

  • [Grade 8 Math: Quadratic Equations] How to factorise ax2 + bx + c?
  • [University Chemistry: Titration] What is my qs?
  • [AS Level English: Essay Writing] Should all adverts be factual?

Include instructor prompts. What does your instructor want you to accomplish?

Still acceptable…, but preferably not:

  • [High School Math] <Question>?

Be specific about your grade

  • [Grade 8 Math] Help me!

What is your qs?

When your question has been answered, please edit the post's flair to "✓ Answered".

 

❌ Not Allowed:

  1. Copied questions without context or explanation. You must show some work or thought.

  2. "Do this for me" posts such as posting of quizzes or lists of questions.

  3. Posts tagged "urgent," "ASAP," "important," "due in an hour," etc.

  4. Requests for help with cheating, plagiarism, or other violations of academic integrity; violations of copyright or terms of use; or other illegal or unethical activities.

  5. Being a jerk. Jerks get banned.

  6. Offers or solicitations of payment in any form. Those who spam us will be banned. No warnings.

  7. Advertisements of any form. This includes asking for "likes," page views, or similar things.

  8. Surveys. Take them to /r/samplesize.

Keep in mind that we do not and will not have any sort of vetting procedure for responders. Accept answers at your own risk.

 

For citation questions, check the Purdue Online Writing Lab

 

Using LaTeX:

To use LaTeX on this subreddit, use u/LaTeX4Reddit. Simply mention the bot in a comment and put the expressions that need to be rendered in code blocks, and u/LaTeX4Reddit will respond. Please contact u/Oryv if the bot malfunctions, or if you have questions on how to use it.

 

Custom superscript and subscripts:

Here's the syntax:

*_sub_* makes sub

*`sup`* and ^(sup) both make sup

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If you have trouble with spacing, add some blank spaces with &nbsp;

2300H becomes 2300   H

Spoiler Tags:

[text](#s) = text

>!text!< = text

 

Useful Symbols:

θ­ μ ← ↑ → ↓ ↔ ↨ ω α ∴

Basic Math: ≠ ≈ ≥ ≤ ± ∓ × ⋅ ÷ √ ‰

Geometry: ∠ ∟° ⊥ ∥ ≅ Δ π

Algebra: ≡ ≜ := ≈ ∝ ∞ ≪ ≫ ⌊x⌋ ⌈x⌉ ∘ ∆ ∑ ∏ γ φ π

Set Theory: ∩ ∪ ⊆ ⊂⊄ ⊇ ⊃ ⊅ ⊖ ∈ ∉ Ø

Calculus & analysis: ε ∫ ∮ ∯ ∰ ∇ δ ∞

 

Available Commands

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  • change flair |Valued/Notable/Top Contributors|: Mod: change flair to <FLAIR NAME>

For more commands, please see User Moderation

 

Some possibly helpful links:

Khan Academy

AskRose

The Organic Chemistry Tutor

freesciencelessons

GCSE Science

Doc's Brown Website

RapidTables

Divisor Finder

Pastebin / JSFIDDLE.net/ IDEOne

Revert to older template

Revert to original template

/r/HomeworkHelp

631,739 Subscribers

1

[HS Physics] Torn between option B. and C. but I think it's letter B.

1 Comment
2024/06/26
16:51 UTC

3

(PHYSICS:MDCAT) Please tell me how to solve it. I can't understand the formula to be used.

1 Comment
2024/06/26
15:47 UTC

0

[Grade 10 Algebra]

https://preview.redd.it/nyeyajmbrx8d1.png?width=418&format=png&auto=webp&s=81676dfec017a3db76bbec544779c9b4526abb3c

The answer is given to be 0 but I can't get to it. My answer isn't even a whole number.

So can somebody help me and provide me with a solution. I think there's something wrong with the options.

4 Comments
2024/06/26
15:39 UTC

2

[High School Math] I transcribed the contents of my book to english. Why is it not taking into account the times when x + 1 < 0 ? Is it an error? How do I solve this properly?

3 Comments
2024/06/26
15:10 UTC

1

[A-Level Pure Maths: Permutations]

Can you help me solve these 3 questions:

  1. A couple and their 8 children are going to watch a movie in cinema. They booked a row of seats. Find the number of ways the family can be seated if the couple:

a) sit side by side b) sit at both ends of the row c) Sit separately.

2 Comments
2024/06/26
14:38 UTC

1

[University Cinema: Essay/PresentationWriting] How to find a plan about Jacques Demy ?

Hi I desesperatly need help, I have a presentation about Jacques Demy in a week and due to have been overworked last week I didnt have time to prepare, I'm starting now but I can't find a plan, I really can put my mind into it. I already have my problematic and I can't change it; Its ; "How does Jacques Demy manage to tackle deep and serious themes under the guise of light and entertaining films?" I was planning on using the three films "The Umbrellas of Cherbourg", "The Young Girls of Rochefort" and "Donkey Skins".

If you have any ideas about a plan, thats will be very helpful.

I already have a lot of informations and understanding about the director and its films but I really can't seem to find a plan in 2/3 parts that could compare the seriousness of the films and its light aspect.

Thank you in advance!

3 Comments
2024/06/26
13:12 UTC

1

[University Data Science] False positive when trying to find cointegrated pairs

Want to find cointegrated pairs from a list of 50 financial instrument's prices. However, all the pairs that have been found as "cointegrated" aren't and at a loss of what's going wrong. Looking for any solutions or advice of where to look.

https://preview.redd.it/pvjt70blaw8d1.png?width=717&format=png&auto=webp&s=d4c89e20d8487ebe8c972deaf809ee101f881bdb

price of instrument 15 and 42 along with its difference (which is clearly not stationary)

1 Comment
2024/06/26
10:43 UTC

3

[College English Essay] How many people die from these medications a year? Google censoring answers, please help.

Hello, I’m trying to write a paper and I’m trying to find reliable sources for the number of people who die from Ibuprofen, aspirin, viagra, benadryl - diphenhydramine, Imodium - lopermide, and other over the counter medications. When conducting the searches for some reason google and DuckDuckGo is censoring my search results and bringing up allot of article about Muslim pilgrims dying during Hajj and illicit drug overdoses when I’m typing nothing that even remotely relates to those subjects. I don’t understand what is happening. Can someone or some group of someone’s please help me find reliable sources for the number of people who die from these medications every year? Thank you!

3 Comments
2024/06/26
05:47 UTC

10

[Calculus III] I don't understand this. Is w(x) just e^(s^3+t^2)?

5 Comments
2024/06/26
05:18 UTC

6 Comments
2024/06/26
04:09 UTC

1

[Integrated Math 2]

I need help, first time using reddit. I am not sure what to do. Can someone provide steps to solve?

https://preview.redd.it/2dhn58irbu8d1.png?width=377&format=png&auto=webp&s=3ece10a99c3eb379a76127cc8e6c20ff49bbefce

Thanks.

5 Comments
2024/06/26
04:05 UTC

1

[Grade 11 Physics: Vectors and Kinematics]

1 Comment
2024/06/26
02:36 UTC

1

[University: Psychology] Assignment Clarification - Global vs Sociocultural Influences

I need some help clarifying some assessment requirements

It's a paper for a positive psychology class, if that helps

I'm just having a hard time with determining the difference between two separate requirements

“Explain how sociocultural factors influence how scientists think about behavioral and mental processes within positive psychology”

“Explain how global factors influence how scientists think about behavioral and mental processes within positive psychology”

I'm not understanding the differences between global factors and sociocultural factors… because I'm feeling like the answer is the same for both of them.

Note: Emailing the professor isn't an option at this point because it needs to be in before I'd end up getting a response. know, I know… procrastination is bad.

2 Comments
2024/06/25
21:26 UTC

1

[University Mathematics: Graph Theory] Proving something about biparite graphs

I am given a bipartite graph (A U B, E) with the following property: for every a in A, b in B fow which ab in E, d(a) >= d(b). I must show that |A| <= |B|.

I realised that this is not true in general, since if A has as many vertices as B connected to each other and extra isolated vertices then the hypothesis is satisfied but the conclusion is wrong. Am I missing something here? So the only way I saw to prove this is further assume that the graph is connected. My idea was to try proof by contradiction, and so assume that |A| > |B| and start specifically with the graph which connects every vertex of A with at least one vertex of B and using the pigeonhole principle show that there is at least one vertex of B with degree greater than one of its connected vertices which contradicts our hypothesis and then argue that every other connected bipartite graph can be constructed from this one graph by adding edges which always causes the same issue.

Any feedback on my approach or alternative and/or better ways to prove it?

4 Comments
2024/06/25
20:47 UTC

1

[Linear Algebra: Linear Equation Systems] I got everything correct up until part d). I do not understand how to do part d) may someone pls explain it to me?

https://preview.redd.it/slbrinm73s8d1.png?width=1013&format=png&auto=webp&s=05cb66fbd45e88da435bcf973eb3b6aa7046a4b1

The equations on the right side of the screen correspond to the question and the parts sorry about the bad screenshot.

3 Comments
2024/06/25
20:35 UTC

2

[AS Level Physics: Light] class 10th trigonometry questions. Can't figure out what to do help please.

4 Comments
2024/06/25
19:33 UTC

0

(University: Automata languages and computation)

"Explain why the language 𝐿 = {𝑤𝑤𝑤 ∣ 𝑤 ∈ {𝑎, 𝑏}∗} is not regular"

please help me figure out how to word the answer to this. i have been awake for over 40 hours so my brain isn't quite working right now haha. I'll be using pumping lemma to justify my answer. just need help structuring. thanks!

3 Comments
2024/06/25
19:01 UTC

319

[High School Biology} Can someone please tell which one it is and why?

56 Comments
2024/06/25
17:52 UTC

20

[Grade 8 Competition Math] Find the area of the shaded area

5 Comments
2024/06/25
15:59 UTC

0

[Middle school - Derivative]

If f(x) and g(x) are differentiable functions, and given that f(1)=2 , f'(1)=5 , g'(1)=2 , and g''(1)=-1 .

what is the value of (g'/f)(1)?

I tried solving it in the two ways that our teacher taught us, but I couldn't figure it out.

Can anyone help please?

5 Comments
2024/06/25
14:45 UTC

1

[Grade 10 Geometry: Properties of Parallelograms] How do I solve for the length of WM?

2 Comments
2024/06/25
14:25 UTC

1

(Practical Research) What research design should I use for comparing the qualities of 2 products?

Example: I want to compare the qualities of my egg-shell induced cement blocks compared to the commercialized cement blocks?

2 Comments
2024/06/25
13:06 UTC

2

[Year 11, Chemistry] I doing a potassium iodate clock reaction. I'm wondering if what I've written here is correct. Solution B is acidified sodium bisulphate. What I'm using as a guide is linked in comments

1 Comment
2024/06/25
12:31 UTC

0

[AP Statistics: Assignment] When are polls about issues more diffucult than candidate polls?

Hi, I would like to ask you: How are political candidate polls (who will win an election) different from polls about issues (abortion, gun rights, personal beliefs) and is it true that polls about issues are notoriously more difficult than candidate polls?

2 Comments
2024/06/25
11:46 UTC

1

[12th Grade/1st Year Uni Complex Numbers] Finding zb given the requirements in the image.

I've been scratching my head over this for several hours, unable to find a solution. I've scoured all corners of the internet, including ChatGPT, and nothing has returned an answer or a method to find the answer that has been 100% correct as per the given requirements. Any help would be greatly appreciated!

https://preview.redd.it/y96diwjcdp8d1.png?width=807&format=png&auto=webp&s=4a631c85d1f5e8d48807f6d47412eddf52aa42c3

8 Comments
2024/06/25
11:25 UTC

1

[University Signal processing: Laplace transfrom] How can this transfer function reduce noise

2 Comments
2024/06/25
10:04 UTC

0

[Seeking Advice on Panel Data Analysis for Healthcare Utilization in Least Developed Countries] any advice?

I would like to focus on Healthcare Utilization in 45 Least Developed Countries, specifically using Ambulatory Services as the indicator, and conduct a Panel Data Analysis (every three years or "triennial")...

I decided that my Dependent Variable is:

Y = Outpatient Visit Rates (triennial/per capita)

Then my Independent Variables are:

X1 = GNI Income (triennial/per capita/$) X2 = Adult Literacy Rate (triennial/per capita) X3 = Share of Population in Low-elevated Coastal Zones (triennial/%)

I already have data for my independent variables, which are fixed data. However, I'm confused about my X3, whether it's applicable or too broad?

Because these 45 LDCs obviously have different total populations and different percentages of populations living in coastal zones.

So, do you have any comments on whether I will have difficulty with my panel data analysis? Or will I have problems if I choose 45 LDCs and then conduct a statistical panel data analysis for each of them?

I need help! 😭

2 Comments
2024/06/25
06:24 UTC

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