r/MathHelp

Algebra tutoring

My 8tg grader failed the algebra regents this past June. Would you suggest retaking it in August or repeat Algebra 1 in high school? Also I’d like to find a tutor to start working on it this summer in order to get ready for 9th grade. Thanks in advance for any suggestions.

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u/Previous_Energy5562 — 14 hours ago

How can I rewrite person-years without it feeling like jargon?

I came across some research where scientists were assessing the effectiveness of a vaccine and placebo a few weeks after receiving multiple doses of either. It says the incidence of first infections post the vaccination phase was around 45 infections per 100 person-years in the vaccine group, and 49 infections per 100 person-years in the placebo group. Similarly, the all infection rates post the vaccination/placebo phase (which includes multiple infections), was 60 per 100 person-years in the vaccine group, and around 66 per 100 person-years in the placebo group.

What sort of ways could this be framed to ensure that someone younger can understand this?
Could this be written as 45 infections among 100 people every year? And 60/66 infections, including repeat infections, among 100 people per year? The rate of first infections in people who received two doses of the vaccine was 45%? And 60/66% for all infections among both groups? Please help.

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u/OCDtoomuch — 20 hours ago

Have I understood the properties of the power of a product((ab)²=a²*b²) correctly?

I decided to go through the curriculum for grades 7, 8, and 9.

I'm not sure if I've understood the properties correctly.

Like, when factoring out the exponent ((ab)²), you can raise the factors to their respective powers separately (a² * b²), right? Or am I just trying to figure out if I've understood this correctly?

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u/hailaim — 4 days ago

Accuplacer help

I’m taking the ACCUPLACER math section in about a week, and I was wondering what to expect and how I should study for it. Thanks.

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u/Gold-Trade6464 — 7 days ago

Why am I so stupid when it comes to Mathematics no matter how simple the equations are?

Ever since I was kid, I had always find math difficult. I'm a very slow learner compared to most, I can't understand anything the teacher is saying and it often leaves me confused, lost, and it makes me feel how stupid I really am. The only time I've actually liked and enjoyed math (not that I hate it) was back in 6th grade when I had this amazing tutor that actually focused on me. My grades went from B- to A-, but after that, everything just seemed to fall apart, no teacher ever made me feel understood, they'd always say, "Math is easy if you're willing to learn." Or "Math isn't hard, it's your mind telling you that." Believe me when I say I try my very best to be like my peers, but no matter how hard I try, I could never be as fast as them. Last year, I had an engineer/ Science and Technology Engineering teacher tutor me, it was as if Math finally made sense, like I was my 6th grade self again, but I wasn't consistent as it was expensive and I had other subjects to focus on other than Math so I started slacking off (This one's on me, but I was physically and mentally drained to even do anything.) Right now, whenever I have Math classes, I always prepare myself with the thought, "You need to get used to feeling stupid during this class." Because at home, I always cry myself to sleep just because of Math. I want to learn, I'm tired of feeling this stupid, but how?

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u/Fun_Swordfish_7837 — 8 days ago

I'm not getting the same answer as the calculator which means my answer is wrong but why

The problem is "x²-9x-8=0"

Using the quadratic formula, I end up with: (9+-√133)/2

But when I throw this problem into Mathpapa's algebra calculator, it says 9/2 + 1/2√133 OR 9/2 + -1/2√133

I don't know how Mathpapa got that answer because when I click "show steps" it just jumps from the result that I got to the final result. It doesn't explain how it got from point A to point B, and I'm confused.

Please explain like I'm 5 because I'm very bad at math. Why did this singular fraction ((9+-√133)/2) split into two fractions added together? Why isn't √133 part of any numerator anymore?

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u/Specialist_Ruin_1378 — 10 days ago

Need math help

There was a question if all the questions in a math book is a set or not,her teacher said it's not cause there r diff chapters but my frnd says that in the end they all r maths questions soo what do you all say?

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u/Original-Health-1720 — 10 days ago

trying to come up with an algorithm that will find the tangent line to two specific curves. i did already for two parabolas, wasn't too difficult, but now i'm trying with this more complicated function

the process is straightforward and, with parabolas, somewhat simple. you just have to impose

f'(x1)=g'(x2)

and

g(x2)=f(x1)+f'(x1)*(x2-x1)

with quadratic functions it comes out ok

but the function I want to achieve that for is f(x)=ax+b(1-x)+cx(1-x)+d(x*ln(x)+(1-x)*ln(1-x))

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u/aluminium_is_cool — 11 days ago

Limits

I got to a point where:
(as n approaches infinity) 5000((1/5)^infinity) goes to 500(0).
I understand that 1/5 with the exponent going to infinity makes 1/5 approaching zero but I can’t figure out why the 5000 changed to 500.
Can someone explain that to me?

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u/Sorry_Ad9761 — 10 days ago

Help with limits

Hey guys i have a state test coming up where we have limits of sequels and trigonometry ones and all the others,what are some ways that can help solve any limit whatsoever besides hopital rule ?thank youuu

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u/Outrageous-Ride-6239 — 12 days ago

CAS calculator malfunctioning

For some reason when i try to put "solve((x^3)/3-4x=10+2/3,x)" into my CAS calculator it gets stuck loading until i reset it manually. I can find the answer using a graph and intersection so I don't know why it reacts like that to using solve.

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u/dragonkidkai — 13 days ago

Numerical reasoning

I really need some help with this kind of maths problem.

Im doing a timed assessment for a role I’m applying for. I cant use a calculator. I dont find the maths particularly hard. I can work it out when i have the time. The problem is i cant seem to do it at the speed i need to and i keep getting below average on practice questions because im taking so long.

Are there any tips or advice for ways to quickly work out this kind of question. Assuming i have 12 minutes to answer 20 questions.

Mrs Fuller wants to return a t-shirt, a pair of designer shoes, a dress and a pair of jeans, which cost £12.95, £85.99, £17.99 and £22.99 respectively. How much does she stand to gain if all the items are returned?

£149.92
£133.92
£132.92
£139.91
£139.92

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u/N1AL_L — 11 days ago

i need help learning the basics :’)

hello everyone! i come to this subreddit seeking help and guidance. i am a senior high school graduate and i’m currently studying for college entrance exams and i need help in studying math, specifically the basics.

for context, i never liked math. during online class my attention span was ruined and i never really listened in class, which lead to my math understanding to be stuck at like grade 9-10. i dont know how i got through junior and senior high with very little understanding in math. i tried my best to listen in classes during my senior years and i was okay with the basics of a topic but once it became complicated i get really lost.

so i really need help! i don’t know where to start :’) i’d appreciate it if anyone gave me what to start with, what to focus on, and some studying tips for math !!! if you know any videos that helped you understand a certain topic, please let me know ab it.

(for extra context, i’m applying for colleges in the philippines)

any help is appreciated :) !!!

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u/totoro0920 — 12 days ago

Advice needed with adult attempting to learn maths.

Hi all,
More of a question here and some advice needed.
46 year old guy attempting to learn maths.
I was a high school drop out at the age of 15, I never really attended my last year of high school (year 10).
I went on to have an amazing, highly paid career as a tradesman welder.
Throughout my final years as a welder at 41 years, a few years earlier I started doing a tonne of extra studies in welding and metallurgy, which required hours, hours and hours worth of study, something I had never done.
I have nearly reached the very top of where I can go in my career, the final hurdle - Welding Engineer.
I started the Welding engineer course last January 2025.
I have just reached module 3, which is design and stresses. For the lectures I’ve watched so far 4/12, they’re 2.5-3hrs long of calculating force over area. Rearranging numbers which I assume is algebra and working out angles, which is trigonometry.
I’m already in panic mode. 1 because I never saw it in high school and 2 I’m wondering how easy an adult can actually pick it all up.
I have found a tutor and will start with them in the coming weeks.
I guess my question is; how hard will it be for a middle aged guy to go back and try learn the basics/ fundamentals of algebra and trigonometry.
Any advice or feedback would be greatly appreciated.

Thank you

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u/Same-Membership4107 — 14 days ago

HELP WITH MATHS

im a first year ba economics student, i did not have maths in my 11th and 12th, so i dont understand anything theyre teaching in my first semester. i want to cover the syllabus but i cant find a good beginner course which will help me build concepts and understand the subject matter. i need to study calculus, algebra and stats too. can anyone help me and recommend courses online or on youtube from which i can study

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u/hvniya — 12 days ago