[10th grade Mathematics] Why does combining these statements of proportionality by multiplication make sense?
πŸ‘︎ 3
πŸ’¬︎
πŸ‘€︎ u/A1D3N_2005
πŸ“…︎ Mar 31 2021
🚨︎ report
My 1/10 scale venator class star destroyer, 4 week build with full interior (100% mathematically accurate and proportioned) reddit.com/gallery/mxuxqz
πŸ‘︎ 116
πŸ’¬︎
πŸ‘€︎ u/Jiley2742
πŸ“…︎ Apr 24 2021
🚨︎ report
Waator Kat, protector of mathematical proportions, slayer of vitamins.
πŸ‘︎ 120
πŸ’¬︎
πŸ‘€︎ u/DoomKing85
πŸ“…︎ May 28 2021
🚨︎ report
Find a mathematical model that represents the statement. (Determine the constant of proportionality.) y is directly proportional to x. (y = 68 when x = 4.)

Find a mathematical model that represents the statement. (Determine the constant of proportionality.) y is directly proportional to x. (y = 68 when x = 4.)

πŸ‘︎ 9
πŸ’¬︎
πŸ“…︎ Sep 14 2020
🚨︎ report
TIL that if you divide every number in the Fibonacci sequence (1, 1, 2, 3, 5, 8...) by its preceding number, you will get closer and closer to the golden ratio, a proportion that has appeared throughout nature, art, and mathematics. quickanddirtytips.com/edu…
πŸ‘︎ 139
πŸ’¬︎
πŸ‘€︎ u/lsthisnameunique
πŸ“…︎ Mar 15 2021
🚨︎ report
Find a mathematical model that represents the statement. (Determine the constant of proportionality.) z varies jointly as x and y. (z = 28 when x = 2 and y = 7.)

Find a mathematical model that represents the statement. (Determine the constant of proportionality.) z varies jointly as x and y. (z = 28 when x = 2 and y = 7.)

πŸ‘︎ 3
πŸ’¬︎
πŸ“…︎ Sep 15 2020
🚨︎ report
This map of Virginia with 11 congressional districts I made on Dave's Redistricting has a perfect 100/100 proportionality rating davesredistricting.org/jo…
πŸ‘︎ 130
πŸ’¬︎
πŸ‘€︎ u/jinkinson
πŸ“…︎ Jun 22 2021
🚨︎ report
This map of North Carolina with 14 congressional districts has a proportionality rating of 90/100, the highest of the 13 such maps I have made on Dave's Redistricting davesredistricting.org/jo…
πŸ‘︎ 122
πŸ’¬︎
πŸ‘€︎ u/jinkinson
πŸ“…︎ Jun 19 2021
🚨︎ report
TIL Last year, researchers in the US and UK found that countries with an existing culture of gender equality have an even smaller proportion of women taking degrees in science, technology and mathematics (STEM). bbc.com/worklife/article/…
πŸ‘︎ 81
πŸ’¬︎
πŸ‘€︎ u/Goosekilla1
πŸ“…︎ Jul 22 2020
🚨︎ report
Mathematical Error Doing Inheritance in the Qur'an

Usually Muslim apologists claim that the scientific errors in the Qu'ran are due to errors in translation, matter of interpretation or metaphorical and thus not an error. Some examples from the Qur'an include the sun setting in muddy water (Qur'an 18:86) sperm emerging from between the backbone and ribs (Qur'an 86:7) or the Earth being flat (Qur'an 71:19, 88:20, 79:30). However, an error that is mathematical in nature is free from these so called rebuttals.

Verses 4:11-12 give us inheritance ratios allocated to every individual depending on what their relation is to the person who's passed. In a scenario where a man dies leaving behind his wife, three daughters and his parents the ratios are given as 1/8, 2/3 (for the daughters to share equally on their own) and 1/6 for each of the parents. Adding all these up we get:

2/3 + 1/6 + 1/6 +1/8

Equalizing the denominator

16/24 + 4/24 + 4/24 + 3/24

= 27/24

Ruh roh! The numerator (shares) are bigger than the denominator (the inheritance). If we had $100 of inheritance, we would need $112.5 instead to share it equally. So, obviously there is an error here and changing these numbers in any way, shape or form means going against the Allah's allocated ratios; therefore it is not acceptable.

Even though this error is not reconcilable, I'd like to address some of the claims that will inevitably pop up in the comments. The sahabah have found ways to deal with this issue. The system of Awl was first used by Umar; however, I'd like to focus specifically on the Awl that is used on this issue with the wife, daughters and parents. This exact same problem was addressed by Caliph Ali when a man asked him this question. It's called Mumbariyya because he solved it in the pulpit.

What Ali says is as follows: we have specific proportions left from the ratios after we add the ratios up:

24 * 1/8 = 3

24 * 1/6 = 4

24 * 1/6 = 4

24 * 2/3 = 16.

We'll be changing the 1/8 of the wife to 1/9 while the base number or denominator is increased to 27. After doing that, we'll end up with the same proportions; however, the amount from the inheritance each individual will get is decreased - this is the first issue. The new ratios are as follows

... keep reading on reddit ➑

πŸ‘︎ 90
πŸ’¬︎
πŸ“…︎ Jun 25 2021
🚨︎ report
Proportion Cheat Sheet by Cheat #education #mathematics #maths
πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/Cheatography
πŸ“…︎ Dec 30 2020
🚨︎ report
Mathematics and Music

Sup ladies and gentlemen, I am a final year student who is doing an oral on the subject

"Why does music interest mathematicians?"

But I must include the final year program in it, or at least one of the following chapters:

logarithms, differential equation, integrals, derivatives convexity inflection point etc etc

So I would like to know if I can talk about one of these chapters & relate it to music.

Thank you.

πŸ‘︎ 10
πŸ’¬︎
πŸ‘€︎ u/Nyudz
πŸ“…︎ Jun 05 2021
🚨︎ report
IMPD proportionality use of force response goes into effect fox59.com/news/impd-propo…
πŸ‘︎ 24
πŸ’¬︎
πŸ‘€︎ u/Tikkanen
πŸ“…︎ Jun 15 2021
🚨︎ report
Weird request: I'm designing an electoral system and need some thoughts in terms of mathematical proportionality

Hello,

I'm not quite sure if this is the right place, but I'm trying to devise an electoral system that's highly proportional, but doesn't require party lists or proportionality just being seen from a partisan view. I'm doing this on the basis of STV but, it's a bit unique...

Could you guys take a look at this and tell me what you think, is it sound from a mathematical point of view?

Thanks :)

πŸ‘︎ 13
πŸ’¬︎
πŸ‘€︎ u/IndigoRolo
πŸ“…︎ Jul 12 2018
🚨︎ report
Proportionality: Doing what it takes to win - opinion -- Such tit for tat cycles of clashes have been periodic since Israel’s unilateral withdrawal from the Gaza Strip including Gush Katif in August 2005, and no end of Palestinian terrorism is in sight jpost.com/opinion/proport…
πŸ‘︎ 34
πŸ’¬︎
πŸ‘€︎ u/TheGhostOfTzvika
πŸ“…︎ Jun 24 2021
🚨︎ report
[Year 11 Specialist Mathematics] Proportionality

Hi all,

I do not understand what "partly" refers to in this question and I don't know how to solve it and what the question means. Here is the questions:

y varies partly as x and partly as 1/x^2. Express y in terms of x, given that y = 9 when x = 2 and y = 9 1/4 when x = 4.

Thanks heaps!!

πŸ‘︎ 5
πŸ’¬︎
πŸ‘€︎ u/Blazers33
πŸ“…︎ Dec 21 2017
🚨︎ report
"The proportions of the pictorial representation of the Mandelbrot set reflect all known consonant intervals, the major perfect chord, and also the combination of major and minor sixth..." Mathematician J.H. Hubbard calls the Mandelbrot set "the most complicated object in mathematics." reddit.com/gallery/jikbmv
πŸ‘︎ 20
πŸ’¬︎
πŸ“…︎ Oct 26 2020
🚨︎ report
I have used Dave's Redistricting to draw almost 40 different maps of Ohio with 15 congressional districts. This map has the highest proportionality rating (95/100) of all the ones I have drawn. davesredistricting.org/jo…
πŸ‘︎ 14
πŸ’¬︎
πŸ‘€︎ u/jinkinson
πŸ“…︎ Jun 16 2021
🚨︎ report
Crimson Elite Talon is the best skin (mathematically proved using golden proportion)
πŸ‘︎ 206
πŸ’¬︎
πŸ‘€︎ u/iodine_deficiency
πŸ“…︎ May 29 2020
🚨︎ report
Link to mathematics (Proportionality)

A few days ago we were trying to figure out the meaning of this symbol in the room (≁)

https://i.imgur.com/kaHAaR6r.png

After some time user "mars was a gift" found out that the symbol is used in mathematics. Specifically Proportionality. https://en.wikipedia.org/wiki/Proportionality_(mathematics)

Interesting find considering that symbol is seen in the video that shows pen's description.

πŸ‘︎ 4
πŸ’¬︎
πŸ‘€︎ u/seltzermelt
πŸ“…︎ Jun 16 2017
🚨︎ report
PCR band intensity is proportional to amount of DNA, but is it known what the mathematical relationship is?

So I want to compare the starting amts of DNA across 2 samples, and I do indeed have bands of different intensities. My question is - is it known if the relationship between intensity and amount is linear or square or cube or whatever?

If this info is needed- I've set up the experiment well enough with control samples and controls in other loci, so I am confident about my intensity ratios. I'm doing a basic PCR, not a qPCR, and running the bands on a basic agarose gel, staining with sybrsafe (like etbr), and visualising under UV - all standard stuff afaik.

πŸ‘︎ 7
πŸ’¬︎
πŸ“…︎ Aug 10 2020
🚨︎ report
Want to climb? Dodge More (A Mathematical Analysis)

This has been said before, but I hadn't seen any analysis on the topic, so I thought I'd work through the idea and show how powerful dodging can be as a method to climb.

As you may have heard, there are a few factors that make this a reality

  1. Matchmaking only depends on your MMR
  2. LP gains and losses depend on the difference between your rank (LP) and your MMR
  3. Dodging does not apply an MMR penalty, only an LP penalty

Because of the first two factors, your LP always tends towards your MMR. That, combined with the third factor, means that dodging does not affect your rank in the long term.


Results

  1. Dodge a single game while hard-stuck
    Skill = MMR = 1500, LP = 1490.

As you can see, it doesn't take long before your LP returns to your MMR. After 21 games (using my constants) you are within 1 LP of where you should be.

  1. Dodge a single game while climbing
    Skill = 1600, MMR = 1500, LP = 1490

As you can see, it doesn't take long before your LP returns to your MMR. It also happens long before you reach your target MMR. In this situation, your LP also returns to the value of your MMR after 21 games.

  1. Smart Dodge while hard-stuck, every 10th game is garbage
    Skill = 1500, MMR = 1500, LP = 1500

In this analysis, every 10th game has a 20% lower winrate, and 2 players are shown. One dodges that game, and other doesn't. As you can see, dodging has a significant positive impact. One interesting thing about this one is that despite dodging every 10th game, the dodging player's MMR never changes, because...nothing is happening that would change it.

  1. Smart Dodge while climbing

This shows how dodging is not only a good strategy to plateau at a higher rank, but a good strategy to climb faster as well. As stated before, the specifics will change if I change the assumptions, but the general trend will not.


Disclaimers:

For the following mathematical analysis, a few assumptions have to be made. These assumptions are true in spirit but may be slightly different in reality to the real situation. For example, it was assumed that LP gain on a win is 15 if your LP = MMR, and increases proportionally based on the difference between your MMR and LP. A certain proportionality constant was chosen that seems consistent with my experience. It may be true that the rel

... keep reading on reddit ➑

πŸ‘︎ 4
πŸ’¬︎
πŸ‘€︎ u/Pandarandrist
πŸ“…︎ Apr 22 2021
🚨︎ report
From the 5M share prospectus posted today: "A large proportion of our common stock has been and may continue to be traded by short sellers which may increase the likelihood that our common stock will be the target of a short squeeze."

Nothing has changed. It's mathematically impossible the shorts have covered, and every time we witness the stock being pounded down new shorts are created. All we have to do is hold.

Here's the 424(b)(5) filing:

https://preview.redd.it/pq9n1n7o4b471.jpg?width=1704&format=pjpg&auto=webp&s=e9205c863570205bb0b467cd05c226ea40f7d8a3

πŸ‘︎ 111
πŸ’¬︎
πŸ‘€︎ u/Lancerevo012
πŸ“…︎ Jun 09 2021
🚨︎ report
[Opinion] Proportionality: Doing what it takes to win -- Such tit for tat cycles of clashes have been periodic since Israel’s unilateral withdrawal from the Gaza Strip including Gush Katif in August 2005, and no end of Palestinian terrorism is in sight jpost.com/opinion/proport…
πŸ‘︎ 3
πŸ’¬︎
πŸ‘€︎ u/TheGhostOfTzvika
πŸ“…︎ Jun 24 2021
🚨︎ report
[Ryan Glasspiegel]: In a 3 year period, the NBA finals are almost down 2/3s (20 mil to 7.45 mil). Thats the point I think people miss when they say everything is down in the pandemic. Other sports are down 10-20%. Its the proportionality, in an era where things are slipping, the NBA is slipping more

Pretty interesting podcast conversation about NBA ratings: https://theathletic.com/podcast/29-house-of-strauss/?episode=66

I didn’t realize how drastic the dropoff has been since the 17 Finals. Went from 20 million, to 17 million, to 15 million, all the way down to 7.5. And he talks about all other sports ratings, college ball, baseball, football, etc., - they might be down, but there’s not nearly the drastic dropoff the NBA has seen.

Also discusses how behind the scenes the NBA PR machine spends more time trying to say this isn’t a problem rather than trying to figure out why this is happening

πŸ‘︎ 96
πŸ’¬︎
πŸ‘€︎ u/sriracha82
πŸ“…︎ Feb 22 2021
🚨︎ report
CMV: Fines should be proportional to a person's wealth

When someone gets, for example (but not exclusively) a parking fine, the amount they have to pay should change depending on how much money they earn. This is because the fine is not a payment for an item, it's supposed to be a punishment and a deterrent. If someone with no income has to pay a Β£50 fine, versus someone with millions in the bank, the amount of punishment they're experiencing will be vastly different, even though they've done the same thing. I think in this situation it makes more sense to balance the level of punishment, than to have the same arbitrary cash amount.

I'm sure I've just shown how little I understand the way the law and/or economics works, and I welcome anyone to fill me in.

Edit: I'd like to clarify on what sort of system I'm envisioning - although I'm sure this has a few thousand issues itself. I picture it working similarly to tax brackets, so there's a base fine of X, and as the brackets go up people have a proportionately higher fine to pay.

Edit2: I'd also like to thank everyone for commenting, this has been really, really interesting, and I have mostly changed my mind about this.

πŸ‘︎ 10k
πŸ’¬︎
πŸ‘€︎ u/buttonbirds
πŸ“…︎ Jun 15 2021
🚨︎ report
IMPD proportionality use of force response goes into effect youtube.com/watch?v=oVgMa…
πŸ‘︎ 7
πŸ’¬︎
πŸ‘€︎ u/m4moz
πŸ“…︎ Jun 16 2021
🚨︎ report
Wyoming Rule Map in Action Based on Proportionality (Quarantine got real boring). 1st State Up is Alabama.
πŸ‘︎ 71
πŸ’¬︎
πŸ‘€︎ u/Ok_Vanilla6593
πŸ“…︎ Apr 23 2021
🚨︎ report
UN human rights office urges calm, after bloodshed in Colombian city of Cali. "We stress also that law enforcement officers should abide by the principles of legality, precaution, necessity and proportionality when policing demonstrations." news.un.org/en/story/2021…
πŸ‘︎ 17
πŸ’¬︎
πŸ‘€︎ u/dannylenwinn
πŸ“…︎ May 05 2021
🚨︎ report
I had my phone seized by Police under PACE for an alleged breach of Covid. Is this lawful considering necessity and proportionality?

I failed to self isolate after returning from holiday last summer believing I was exempt due to my occupation (there is an exemption in the regulations for my profession). I returned to my workplace the following day and I was reported anonymously and Police investigating the alleged breach seized my phone as evidence of an offence.

The next day I submitted a statement after caution confirming my presence at the locations alleged (my place of work) and at the times alleged and believing they no longer had the necessity and always believing it to be disproportionate, I requested the return of phone which was denied by police.

I was refused 4 E’s or a fixed penalty notice and was advised that I would be summarily investigated and reported and that this allowed them to retain and examine my phone.

Reluctantly my solicitor informed police to limit the search of the phone to the extent of the the investigation which was a 14 day period after my holiday. The investigating officer confirmed by email that they would. My phone was examined and it is apparent that they have looked at WhatsApp messages and photos between my partner and I from 2016 to present day as they have asked further questions about some of the content being an issue in relation to data protection offences.

My question is: was the seizure of the phone lawful on the basis that it was necessary and proportionate for an alleged breach of covid where I supplied evidence confirming my location outside of my home during the period after my holiday?

And was the further examination of my data outside of the extent of the investigation (some 5 years outside) a breach of my art8 ECHR right to private and family life?

The investigating officer who was asked why they’d examined this data said that they”dip sampled” phone data for evidence of indecent images of children and to check completion of the download and on doing so, saw images that raised questions for them re other offences to do with data protection offences (minor in nature) - surely a breach of privacy?

What are my rights?

πŸ‘︎ 12
πŸ’¬︎
πŸ‘€︎ u/blui2
πŸ“…︎ May 03 2021
🚨︎ report
Hypatia of Alexandria was one of the ancient world’s most brilliant female philosophers. She was especially gifted at mathematics, and she taught a number of prominent dignitaries from across the Roman Empire. thecollector.com/hypatia-…
πŸ‘︎ 4k
πŸ’¬︎
πŸ“…︎ Jun 21 2021
🚨︎ report
Find a mathematical model for the verbal statement. (Use k for the constant of proportionality.)

y varies inversely as the square of x.

πŸ‘︎ 2
πŸ’¬︎
πŸ“…︎ Sep 14 2020
🚨︎ report

Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. Click here for more information.