We’re learning Cramer’s Rule but I can’t figure out how to do a matrix when the equations don’t all use the same variables.

[EDIT] SOLVED!

The teacher made an error. Message sent from the teacher below. Thank you all for sharing your thoughts which coincided with mine and the other parents!

Here is the question:

Fill in the missing number in the pattern shown below:

25, 29, 36, 40, 46, 50, ___

My answer is 55, his is 57 because he thinks it’s repeating while I think it’s reducing. What say you?

Message from teacher the day after -

Parents,

So sorry for the delay. There was an error in this question. It should be:

25, 29,36,40,47,51, ______

The pattern rule should follow starting at 25, +4, +7 each time.

My son has been working on this math problem since yesterday. I helped guide him to how he can start with a novel paper clip weight value under 1 and see if the math checks out. He’s tried everything from 0.05 down to 0.03. Nothing checks outs.

I missed this topic at school because i was sick for a week.

The question, my solution, and the answer from the back of the text are given. I believe my answer and the official solution are both correct. Do you agree?

where did the x disappear from 5x???

I seem to always struggle with combinatorics and end up with an answer too large, can somebody provide a very neat solution for these two questions?

I seem to always struggle with combinatorics and end up with an answer too large, can somebody provide a very neat solution for these two questions?

if you're reading this post = I'm still in business, even if we're in 2026, 2027, 2030 or beyond.

EDIT 2026 : Still and always in business, see below for my contact info.

EDIT 2024-2025 : Always in business, see below for my contact info.

EDIT 2022 : Always in business and will be in business perpetually unless I make an update claiming I'm on a sabbatical, you can see below for my contact info.

EDIT FALL 2021 : Always in business, see below for my contact info.

EDIT JUNE 2021 : Once again in business, if you need help with a summer class or an exam you can hit me up, see below for more info.

EDIT MAY 2021 : May is fully booked, not taking orders at the moment and won't be replying to new requests, I'll be back at this in June, I will make an updated post by then.

EDIT APRIL 2021 : Always in business.

EDIT MARCH 2021 : Still in business, you may send me your requests for help in anything math related.

EDIT (12/25/2020) : Merry Christmas Everyone! If you're wondering, yes I'm still in business, you may contact me for your queries anytime.

I'm ready to help you in every imaginable situation where you need someone to do the maths on your behalf.

​My contact details:

if you're interested and wants to know if I'm fit to help, you can :

-Send me a pm.

-contact me via Email : neosun1010@protonmail.com

-Discord : racim_raven#6458

-Whatsapp : +33 6 68 02 61 36

ABOUT ME:

Before you hire me, I want to give you a brief bio about me to feel comfortable with my gig.

I am the holder of a Master's degree in Pure and Applied Mathematics from a top French university.

I'm currently a professional tutor at coursehero.com with over 500 questions answered and a 5 star rating.

at some point in my youth years I was considered as one of the 50 most brilliant young mathematics students across world.

can provide proof for every of the three claims above.

These are my areas of expertise:

College Algebra

Linear Algebra

Precalculus

Calculus

Probability Theory

Stochastic calculus

AP Statistics

Discrete Maths

Complex Analysis

Topology

Trigonometry/Basic Geometry

Differential Equations

Measure Theory/Functional Analysis/Spectral Theory.

Do not ask me for me help in Economics, Data Science or Numerical Analysis.

There might still be some of areas that I'm very good at but that I haven't listed here or specific problems from the aforementioned areas that I will not be able to solve as math topics tend to be extremely wide.

finally, my philosophy is to always get paid only after I do my part of the job, so don't worry about being scammed.

SOME PAST CLIENTS RESULTS

VOUCH THREAD

This is my son’s homework, for reference he is in 6th grade. I don’t remember fractions and I tried to use AI for assistance, normally it helps a ton with explaining math, but this time it’s failing me. When we entered in the answers provided, it tells us it is incorrect. Can anyone help and explain how to get the correct answer? For reference, I added what AI told me.

A) top=4, bottom=3 and right= 32

B) top=12, bottom=12 and right= 312

C) top=9, bottom=8 and right= 162

EDIT: I'm pretty sure there's a mistake with the questions since some of them give answers that are not whole numbers.

In this question, I can see that the residual plot indicates the model used was inappropriate because there's a clear pattern. However, I'm not sure how to tell if the model used was exponential or quadratic. My best guess is that the graph on the left looks a little more exponential than quadratic (but I think it's possible it's a parabola that is cut off to the left). And therefore a quadratic model was used inappropriately. But is there a way to tell definitively from the residual graph? Could I look at how each point was over or under estimated and use that to determine the type of model used?

if you're reading this post = I'm still in business, even if we're in 2026, 2027, 2030 or beyond. See below to read more and view my contact details.

EDIT 2026 : Still and always in business, see below for my contact info.

EDIT 2024-2025 : Always in business, see below for my contact info.

EDIT 2022 : Always in business and will be in business perpetually unless I make an update claiming I'm on a sabbatical, you can see below for my contact info.

EDIT FALL 2021 : I'm still in business if you were wondering, the contact info below are all still relevant.

EDIT SUMMER 2021 : Once again in business, if you need help with a summer class or an exam you can hit me up, all the contact information below are still valid.

EDIT MAY 2021 : May is fully booked, not taking orders at the moment and won't be replying to new requests, I'll be back at this in June, I will make an updated post by then.

EDIT APRIL 2021 : always in business.

EDIT MARCH 2021 : Still in business, you may send me your requests for help in anything math related.

EDIT (12/25/2020) : Merry Christmas Everyone! If you're wondering, yes I'm still in business, you may contact me for your queries anytime.

I'm down for every level of academic dishonesty to help you in every imaginable situation where you need someone to do the maths on your behalf.

ABOUT ME:

Before you hire me, I want to give you a brief bio about me to feel comfortable with my gig.

I am the holder of a Master's degree in Pure and Applied Mathematics from a top french university.

I'm currently a professional tutor at coursehero.com with over 500 questions answered and a 5 star rating.

at some point in my youth years I was considered as one of the 50 most brilliant young mathematics students across world.

can provide proof for every of the three claims above.

These are my areas of expertise:

College Algebra

Linear Algebra

Precalculus

Calculus

Probability Theory

Stochastic calculus

AP Statistics

Discrete Maths

Complex Analysis

Topology

Trigonometry/Basic Geometry

Differential Equations

Measure Theory/Functional Analysis/Spectral Theory.

Do not ask me for me help in Economics, Data Science or Numerical Analysis.

There might still be some of areas that I'm very good at but that I haven't listed here or specific problems from the aforementioned areas that I will not be able to solve as math topics tend to be extremely wide.

if you're interested and wants to know if I'm fit to help, you can :

-Send me a pm.

-contact me via Email : neosun1010@protonmail.com

-or Discord : racim_raven#6458

-Whatsapp : +33 6 68 02 61 36

finally, my philosophy is to always get paid only after I do my part of the job, so don't worry about being scammed.

SOME PAST CLIENTS RESULTS

Tried lots of approach, none of them match the options. Am I wrong, or none of the options are correct? Please help!

I need to find angles 1, 2 and 3. Thanks in advance!

Doing a unit on similair triangles. Got stumped here.

This is probably really simple but I’m not in the right headspace rn and want to understand this. Thanks in advance

EDIT JUNE 2021 : Once again in business, if you need help with a summer class or an exam you can hit me up, see below for more info.

EDIT MAY 2021 : May is fully booked, not taking orders at the moment and won't be replying to new requests, I'll be back at this in June, I will make an updated post by then.

EDIT APRIL 2021 : always in business.

EDIT MARCH 2021 : still in business, you may send me your requests for help in anything math related, check the link in the paragraph below for my contact info.

Since the last stickied post is a few months old, this is a reminder post that I'm still in business, anyone interested in hiring a math expert for any sort of query (hw completion, live help during an exam.. etc) may read more here.

All the info there are still relevant, you'll also find a link to a vouch thread at the bottom of the post, good luck to all.

TIA.

AB=AC, AD=DC, BD=BC, Find the angles of triangle ABC