/r/HomeworkHelp
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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✅ 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?
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/r/HomeworkHelp
632,111 Subscribers
[1st Year College Engineering Drawing] What property of tangents can I use here?
I have been trying to solve this for the past few days, and I can't find any similar problem on the internet. The given are ABC=10 units, and the circles are equidistant from each other. Find X and the radius of the circles.
12:57 UTC
[Grade 10 math][factorizing polynomials] help which one is the answer...?
The question is -x² -7x - 12
I have 3 answers and I'm not sure which is correct...
- -1(x + 3)(x + 4)
- -(x + 3)(x + 4)
- (-x - 3)(x + 4)
12:34 UTC
[Grade 10 Mathematics: Polynomial Function] so my question is how do you know what to think of this question when it is asked to a certain point, so number 1, 2, 3, 4 and 5?
i hadn’t even assigned it to my assignment, i need help with another assignment. please do help me!!!
it's just me explaining why you can't divide by zero instead of helping you solve that polynomial function you asked for help with your problem… if you can find a way to factor your polynomial function, then the graph of polynomial functions… were you able to apply all the necessary concepts and properties in graphing each function? write things down / sketch the graph of the functions?
i do think each polynomial clearly has a concept property, did you know this says that it? wanna see if you can? let’s let the others try pls, thanks.
12:18 UTC
[Grade 10: Logic] Inverse statements
Heya there! We've been tackling conditional statements for quite a while and I can generally understand converse, inverse and contrapositive statements.
As a challenge, the teacher gave us the prompt:
Without using the word 'not', state the inverse of:
If for some p>0 and for all x that is an integer, f(x)>x+p, then f(x-p)<0.
So far, what I got is
If for all p≤0 and for some x that is an integer, f(x)≤x+p, then f(x-p)≥0.
12:00 UTC
[Grade 10th Physics] Lesson electricity. I need help on how you simplify this equation which I stumbled across. I don't know if I should call this maths problem
The one I circled. I want know on how you simplify or find the answer.
09:11 UTC
[Calculus]
How do I begin answering this question?
08:48 UTC
[grade 12 Economics] Raclette is a popular wintertime dish in Switzerland. It is essentially melted Raclette cheese over boiled new potatoes. If the price of this cheese decreased, we would expect:
Raclette is a popular wintertime dish in Switzerland. It is essentially melted Raclette cheese over boiled new potatoes. If the price of this cheese decreased, we would expect: a. an increase in demand for the cheese. b. an increase in demand for new potatoes. c. there to be no effect on the demand for either the cheese or the new potatoes. d. an increase in demand both for the cheese and for the new potatoes. e. a decrease in the demand for new potatoes
I’m pretty sure it’s d but if anyone can help me make sure I would appreciate that because I’m pretty sure that a decrease in price of cheese would cause an increase in demand for both cheese and the potatoes since they are complementary goods
07:00 UTC
[grade 12 economics] If goods A and Z are complements, an increase in the price of good Z will:
If goods A and Z are complements, an increase in the price of good Z will: a. increase the demand for good A. b. increase the quantity of good Z demanded and decrease the demand for good A. c. decrease the demand for good Z. d. decrease the demand for good A and decrease the demand for good Z. e. decrease the demand for good
I know it’s either between a or c but they both seem right to me so I’m not sure what’s the difference since I can only choose one
06:56 UTC
[Grade 11 Physics: Mechanics] Revolutions
The angular displacement is solved to be 510rad which is correct and checked, but for amount of revolutions, the solutions say:
Wouldn't you do 510/2π(3.5) ? Since 510 is a displacement length type thing as well?
06:42 UTC
[Grade 10 history: Ancient Egypt] Any good inquiry questions on ancient Egypt for a project?
Mainly about Seth and/or osiris or the enead, havingtrouble figuring one out. All I need is a inquiry question to start me off, or maybe a suggestion?
06:12 UTC
[APUSH] National History Day Topics
National History Day Topics
I am competing in NHD this year and I am struggling to come up with a topic. The theme this year is Rights and Responsibilities in History. I really want to do something relating to WW1. My initial thought was the push for Balkan unification and the assassination of archduke Ferdinand. I was going to try to connect to the theme by talking about large countries responsibility ( Austria Hungary) to protect their minorities rights, however the more I think about it the more I doubt if I can make a huge connection between the topic and theme. Does anyone have any suggestions? I also have to relate it to the US as I am taking an American history class but my teacher said he'd be lenient on the requirement if you are passionate about the topic.
05:19 UTC
[Calculus for Business] Finding Probability by using Probability Trees
My first thought was if the probability for son and daughter is equal, then it would just be (1/2) * (1/2) * (1/2) = 1/8, but that’s wrong.
Now I’m guessing that because it’s 4 children total and there’s 2 possibilities each time, it would be (4/8) * (3/6) * (2/4), but that also is 1/8.
I’m confused on how to start the problem, but ideally I want to solve the problem on my own, so I’m mainly looking for how to ‘start’ the tree
05:12 UTC
[1st year Intro to Chemistry]
Can anyone provide a step-by-step for E under 7 using the balanced equation? I’ve been trying to figure out the conversion factors, but I’m just not understanding what to do. Also, if any of the other ones are wrong, please point them out so I can fix them as well.😓
03:54 UTC
[Calculus: Medium]
How are they not all false?
03:17 UTC
[Computational and Data Science] Committing in GitHub
For this assignment, we are supposed to commit after every question. Usually, there is an option to commit in Environment, but it's not there. I'm not really sure what I did wrong since I imported the GitHub repository into RStudio as I've done in previous assignments. I went to new project, version control, and then copied and pasted in the link. How do I fix this? Any clarification provided would be appreciated. Thank you
02:06 UTC
[STATS] for question 2, my t table my teacher provided doesn’t go to exactly 200. Am I even supposed to use a t table for this question? Also what is one and two sided p at the bottom of table?
02:04 UTC
[grade 8 math]geometry, find the area
Trying to help my daughter. The question indicates a width of 5.5m at a point , but it seems to me it should be 6m along the entire length?
Am I missing something?
02:03 UTC
[High school Chemistry]
Is there anything else I need to add to my periodic table? I need to put important information on it, we can use it on test and stuff like that it’s basically my cheat sheet for the whole year !
01:51 UTC
[Calculus 2] How do you solve this?
00:57 UTC
[Grade 11 Functions] How to do 14?
Unit is Quadratic Functions and the lesson was 3-5, Solving Quadratic Equations. I need help on question 14. I don’t even know how to approach this question.
00:08 UTC
[PreCalc] Finding inverse function
Hello, I was wondering if anyone could help me find the inverse function to the answer I found in part A. I know most of the rules, but it seems I am doing them in the wrong order. If someone could help me, that would be great.
23:57 UTC
[9th Grade Geometry: Triangles] I know what the right answer is, but I’m not sure how to reach it
23:55 UTC
[Grade 12 Biology] True or False?
This is the molecular genetics unit. I’m confused what this statement is saying. My textbook solutions say true, but I thought DNA is synthesized in the 5’ to 3’ direction. If anyone could clarify that would be really appreciated!
23:02 UTC
[Grade 12 Stats & Probs: Probabilities and Expected Values Calculations]
Hi I’m in highschool and I thought this would be the best place to ask about stats (unless there’s another place I’m not aware of) but basically I have an assignment where I need to calculate probabilities and expected value of a given situation but I apparently made the scenario I picked a bit more complicated than what we learned?
Essentially it’s that I pick out objects out of a given population then leave it out then pick again and I thought I could just use hypergeometric distribution for that but apparently not?? I thought I could use ra/n (or whatever the formula was) but I was told that it wouldn’t work lol
If anyone is available to be dmed that would be appreciated I really need help with this right now and I feel like my grade would suffer if I don’t do this right (already struggling)
I would explain my situation here but I have no idea if my teacher would be lurking in Reddit somehow so
Anyways tho thanks!
22:32 UTC
[pure math] could someone help verify my answers please
all questions are attempted in order upto 13. im not sure about some of these solutions though
number 9a) I couldn't figure out the hence part
22:14 UTC
[Boolean Algebra, Computer Engineering] Simplify the following logical equations
I cannot understand boolean algebra for the life of me. Every single time I look up a video on youtube all the answers are completely different for the same problem. A detailed explanation of how to complete each one would be much appreciated and what steps I should follow. For the second one, for example, ChatGPT says the answer is C'*AB, however I got that it was equal to 1. I have no idea how to do this. Am I cooked?
𝐅 = 𝐀𝐁𝐂 + 𝐀C' + 𝐀B'
𝐅 = (𝐀𝐁C') ⋅ (A'+ B' + C')
𝐅 = A'B'C'+ A'𝐁𝐂 + A'𝐁C'+ 𝐀𝐁𝐂 + 𝐀𝐁C'
21:12 UTC
[differential equations] did I get a) right? and why did b) not come out?
I tried 2 method on b) 2nd one was close
20:00 UTC
[grade 11 quadratic functions] finding X with only the hypotenuse
I cant find any answers online and im dying to know the answer for this. I could not figure it out.never done questions like this before. right angle triangle with a hypotenuse of 30, with side lengths x-1 and x.
19:43 UTC