/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

*_sub_`sup`* makes subsup

*`sup`_sub_* makes supsub

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

  • lock post |OP and Valued/Notable Contributors only|: /lock
  • Mark post as —Pending OP Reply |non-top level comment only|: **Therefore**, **Thus**
  • Re-flair post to ✓ Answered |top-level comment only|: **Answer:**, **Hence**
  • 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

632,096 Subscribers

1 Comment
2024/11/10
04:46 UTC

1

[University Physics] How do I solve for the torque in i_theta and i_r?

Here is my work and the key. I'm not sure how the key solved for torque, but I solved for w and alpha. I'm guessing it has to do with the accleration equation, but idk.

https://preview.redd.it/zglo710l000e1.png?width=1377&format=png&auto=webp&s=a4eb8ec511770d37c136168c5d6cd1c1aa25ecc3

https://preview.redd.it/1dz9v0hk000e1.png?width=945&format=png&auto=webp&s=4a438ad62088aa6d8e9795d360a863fa19e82161

1 Comment
2024/11/10
04:06 UTC

1

[College Elementary Statistics] Histogram, Mean, and Standard Deviation Based on One Percentage and a Probability?

I’m sorry I don’t have work, I just genuinely have no idea where to start with this. This feels like it’s not enough information to answer any of these questions but I’m sure it is, since it’s on my homework. If someone could guide me in the right direction I would greatly appreciate it thanks!!

1 Comment
2024/11/10
03:37 UTC

1

[College Elementary Statistics] Finding Probabilities

I’m sorry I don’t have any work, I did this a while back and lost it. I was wondering if anyone could help me with what formula I am supposed to be using to find these values. Thank you!! :)

0 Comments
2024/11/10
03:34 UTC

1

[College Elementary Statistics] Finding Probabilities Using Percentages

Hi again sorry for all the posts!! I have really struggled with probability formulas in general and have no clue where to start with these problems. I can probably draw out the answer, but not know how to do it using numbers. I’m sorry I don’t have work provided, I lost it as I did this a while back and I’m not sure how I got these numbers. I think I multiplied the percentages with some probabilities(?) I would appreciate any help thank you!!

1 Comment
2024/11/10
03:27 UTC

1

[Conflict Resolution] Required Reading

I am not sure if this is the correct place for this, but if possible, does someone know if there is an audiobook available for Building Peace: Sustainable Reconciliation in Divided Societies by John Paul Lederach. I couldn't find it on Audible and I was wondering if there were other places I can look for the audio version. Thank you

1 Comment
2024/11/10
03:14 UTC

1

[Year 1 College Statics] Determining the steel rod’s diameter

this is what i came up so far... i'm pretty confused atm so please enlighten me how i could get the value of the rod's diameter

given value: Frod max = 520.2536 N (AISI 1045 steel material)

0 Comments
2024/11/10
03:02 UTC

1

[IGCSE Mathematics]

I cant seem to figure it out. The answer is apparently 90.

3 Comments
2024/11/10
02:55 UTC

1

[Linear Algebra, eigenvalues] What are the steps to get the eigenvalues?

3 Comments
2024/11/10
02:49 UTC

1

[complex numbers]

https://preview.redd.it/gy966waxdzzd1.png?width=2636&format=png&auto=webp&s=b22fe13b6677c9b41e4ad5659ba8f16bd29b4293

https://preview.redd.it/0nzwrijxdzzd1.png?width=1002&format=png&auto=webp&s=e66d39f6d1d4f50feb42044c84e95cc120d13321

After the line using the result cis(x)... where did 1/8(...)(...) come from and also when it says Now using the result from part b where did the 1/8 go and how did they go from the line above the text 'Now using the result from part b' to the line below that text

2 Comments
2024/11/10
02:01 UTC

2

[year 9: english]any feed back?

-context- i wrote this poem about loosing my cousin bohdi to suicide while she was in an abusive relationship btw this is my first time doing poetry& the assignment specifically says slam poetry

Crushed by the weight of your absence, I sit jagged and cold,

the memories grow old

Crushed by the weight of the world You lay jagged and cold

I replay when i was told

Rotting from the outside in you are not made of gold, silver or stone you are human, Affected by each drop of rain, each gust of wind Just as the trees are, your roots rotted slowly What would you expect when they’re drowning

below the unbearable pressure of the water he held you under you turned into a supernova

Your bodhi tree has that same star inside of it, it burns so bright With each branch the bodhi tree grows, it reaches closer to where the sky scratches the end; it grows closer to you.

1 Comment
2024/11/10
01:58 UTC

3 Comments
2024/11/10
01:52 UTC

1

[University Statistics] How do I calculate the likelihood function?

Can someone explain how find the likelihood function?

A census is conducted and they only found $x$ individual kangaroos in an area. They want to know the kangaroo population size, $N$, and anything below 100 is considered endangered. The detection probability of a single kangaroo, $p$ is does not change from kangaroo to kangaroo.

How do I determine the likelihood of $N$ given $p$ and $x$? And how do I also estimate the max likelihood of $N$?

1 Comment
2024/11/10
01:26 UTC

1

[University: Financial Accounting] Whats wrong within my excel sheet?

1,2,3 show correct formula but wrong value. Any idea what is wrong? My formulas used is in the shaded area written in the same order.

Any advice is appreciated!

0 Comments
2024/11/10
01:19 UTC

1

[college chemistry - Hess’s Law] can’t seem to figure out how to get the bolded reaction from what Im given

I reversed and doubled the reaction where deltaH = -76.6kJ/mol, but after that I can’t seem to get any further.

1 Comment
2024/11/10
01:15 UTC

1

[A-Level Biology: Enzyme practical] Practical on rate of enzyme digestion - How do I calculate the mean from just this? And how do I calculate rate of reaction?

0 Comments
2024/11/10
01:13 UTC

2

[Grade 9 Maths: Consumer Arthmetic] What is the equation to solve and what is the answer?

4 Comments
2024/11/10
00:09 UTC

6

[Discrete Math] There are 6 boys and 4 girls. How many ways can they be divided into groups of 2 persons, such that there is no group with two girls?

7 Comments
2024/11/10
00:00 UTC

1

[College Angular Momentum] I need help finding translational rotation

0 Comments
2024/11/09
23:33 UTC

12 Comments
2024/11/09
23:32 UTC

1

[Undergrad statics] joint A is a pinned and joint G is a roller, what do i need to do first to find this truss member of compression and tension, I know that Ay = Gy = 4.5 and Ax = 0

12 Comments
2024/11/09
23:11 UTC

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