Hi I'm a 2 grader and I need
Help Subtracting |
 hello I am very talented in all subjects except math
I need help please thanks in advance. |
For all your school math homework and assignments
www.schoolmathdone.com |
Hi, I'm a high school junior student in Korea. I can do
The equation of higher degree
Things including imaginative numbers(also known as 'i')
Permutation & Combination
Function
Quadratic Equation / inequality / function
I'm currently learning exponential function & logarithm function
I may not know a lot of Mathematical Terms, but I can solve the problems(If you can search some of the terms in Korean(use the google translator), it would help me a lot).
If you want help, send me a message or leave a comment on this post. |
20346 - | | |   20380 - Reply from Kimmora77 , 10 yrs (U.S) - 2019-02-20
| | Hi my teacher is not making long division understandable. So can you please help me |
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Please help me with Quadratic Equations |
20345 - | | | 20347 -  Reply from Gyungmin115 , 16 yrs (South Korea) - 2018-12-27
| Hello, if you want help with a specific problem, I might be able to help you.
Send me a message if you want help :D |
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I am interested in mathematic. I have been nine years in school, so I can't solve the most hardest math problems. Contact me with email if you have some problems with math. I will try to help you! :) |
20308 - | | | 20427 - Reply from Bety235 (Mexico ) - 2019-05-28
| | One of my dreams is transformed a mathematics girl |
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20308 - | | | 20372 -  Reply from Cissy_Chen3 , 15 yrs (China) - 2019-02-13
| | I'm really interested in math.In my impression,Chinese mathematics problems are difficult.But I like it.I really want to talk to you about some mathematics problems.Will you refuse? |
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20308 - | | | 20342 - Reply from aldo157 (mexico) - 2018-12-27
| | Hi , i want to know how is education in mathematics in your country, i ll be glad to talk about it |
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I am here to help on mathematics so email me or send something to my mailbox :)
Email: idarealunknown@gmail.com
Sincerly,
Ayden |
20296 - | | | 20298 - Reply from Ayden107 , 10 yrs (North America) - 2018-09-28
| | Fyi I can help 4th 3rd and 5th |
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Hello,everyone!I am a high school studen,15 years old from China and i am really poor in mathematics.Well in fact we are learning analytic geometry now and i can understand little about the ellipse...i'd appriciate it if anyone can offer help.T-T |
20285 - | | | 20359 - Reply from Beatriz 82 , 16 yrs (Brazil) - 2019-01-26
|  Hi! I love maths and would love to help you as much as possible... if there's anything I can help with, let me know and I'll do my best! |
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Hello guys,
I am here to help you with your studies. I am experienced on several subjects, actually all listed here. So, anyone who need help kindly reach me via my email address prowrite247@gmail.com. I am an informatics student. I can also help with assignments. Feel free to contact me and we can be buddies. |
20257 - | | | 20297 - Reply from Ayden107 , 10 yrs (North America) - 2018-09-28
| | Hi I need to improve in my math im in the 5th grade so yeah. |
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hi everyone, i like to learn science and math, i also love to learn english. I have a science and math book in English so I can study science and English simultaneously. But I still need help in science, math and english. can you help me in that case? or if you want we can learn together. |
20166 - | | | 20194 - Reply from Casimiri216 , 13 yrs (United States) - 2018-03-10
| | I can help with your math, as long as it is not calculus. I can also help with English. |
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20166 - | | | 20181 - Reply from Stephanie Vazquez 58 , 12 yrs (United States ) - 2018-02-19
| Hi my name is Stephanie I'm 12 years old ...about to 13 on March 3 ..
I know a lot of science I could help you ...and I know math ...im in 7th grade |
|
20166 - | | | 20178 - Reply from andi 215 , 15 yrs (indonesia) - 2018-02-11
| | hi if you want help me you can send me a message in this account |
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20166 - | | | 20177 - Reply from Ranul59 , 18 yrs (sri lanka) - 2018-02-11
| | Yes. I can help you to improve your knowledge.. |
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20166 - | | | 20168 - Reply from Alice214 , 17 yrs (China) - 2018-01-30
| | My math is poor.And my English is poor too... |
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Bonjour, je suis étudiant en Master 2 de mathématiques et j'aimerais correspondre avec ceux et celles qui rencontrent des difficultés en mathématiques quelque soit leur niveau. A bientôt j'espère. |
20159 - | | | 20269 - Reply from RYM109 , 17 yrs (ALGERIE) - 2018-08-18
| | Bonjour/Bonsoir , je trouve cette proposition très généreuse de votre part . Je passe en terminale cette année et j'auais sûrement besoin d'aide en maths. Est ce que je pourrais vous posez quelques questions . |
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 It is my strenghtness to make new friends |
Question: A fluid is flowing between two layers. Calculate the shearing force if the shear velocity is 0.50 m/s and has length 4 m and dynamic viscosity is 2Ns/m 2
Please calculate me the shearing stress if anyone can. I need it urgently. |
20115 - | | | 20349 - Reply from Rishabh 9 , 20 yrs (India) - 2019-01-03
|  Applying Force=(viscosity×velocity) ÷length |
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20115 - | | | 20117 - Reply from robin54 , 40 yrs (USA) - 2017-11-16
| | Which rules can I use for it? Can anyone tell me that. Then I can try on it. |
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Hi!
I'm 19 years old and I study computer science. I love Maths and I'll gladly try to help you with your homework or studing for a test.
Languages: Polish, English, Spanish and I can try to comunicate with you in German, Portuguese, Czech or Slovak.
Contact me via SOTW.1328387 |
I have a final task about maths in greece but i don't understand greek. I'd like to know how different are maths in Greece but in english it would be easier. I'm sorry i only have a week to finish it so save me please
thank you |
Hi. I need help in my math homework. School opens soon so I badly need help soon. I will gladly appreciate anyone's help. |
20046 - | | | 20182 - Reply from Stephanie Vazquez 58 , 12 yrs (United States ) - 2018-02-19
| | Hi I'm Stephanie it depends what grade you are in |
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20046 - | | | 20073 - Reply from Sarah233 , 12 yrs (Australia) - 2017-09-26
| | What grade are you in? |
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20046 - | | | 20070 - Reply from Sarah Grace116 , 11 yrs (USA) - 2017-09-17
| | Hello. It depends on what grade you are in. |
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Hi, i'm looking for someone who need help in math, any level. I'm teaching math by Skype in Russian, and now I want to train to teach on English. So, if you want free help, don't hesitate to contact me by e-mail j.grebeneva@gmail.com or Skype j.grebeneva.
But preference to native-speakers :) |
19959 - | | | 20015 - Reply from Liezle Red54 , 18 yrs (Philippines) - 2017-08-04
|  Hello I want to learn in Mathematics please help meeee |
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I have my Maths GCSES in a couple of weeks and I can do everything except for vectors, I can't get my head around it and was wondering if anyone could help? |
19943 - | | | 19960 - Reply from Julia44 (Russia) - 2017-05-30
| | Hi, I can help, write me to j.grebeneva@gmail.com |
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Hello!I am Charlotte from Hong Kong. I'm grade 5 now and I like studying Language,History and Mathematics,especially Mathematics.
Nice to meet you! |
19884 - | | | 20164 - Reply from Isaiah111 , 15 yrs (U.S.A.) - 2018-01-25
| | if you want to learn math, I'll help you in any way since i'm pritty smart at it |
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I am really interested in mathematics. And I hope I can find some friends who like math! Especially, who likes math contest! |
19842 - | | | 20299 - Reply from Ayden107 , 10 yrs (North America) - 2018-09-28
| | Hi, I love math maybe I could be your friend :) |
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19842 - | | | 19994 - Reply from Laura160 (France) - 2017-07-06
| | Hey, I also love Maths, and I've done two maths contests! |
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Im good at some things in math! |
 La géographie,l'histoire,les maths,...ect
J'aime vraiment ça!!! |
 Hi! My name is Maggie, 14 years old from the US! I lOVE science, math, and history :) I'm a atheist, and I love logic! I like clean energy! My hobbies are listening to music, playn' with my dogs, reading, and watching scientific documentaries! I don't mind your age or where you're from! 😄✨💕 |
19803 - | | | 20286 - Reply from Zhang he43 , 15 yrs (China) - 2018-09-09
| | Hello,Maggie.I am the same age as you.I like biology very much.Nice to meet you! |
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19803 - | | | 19885 - Reply from Charlotte244 (Hong Kong) - 2017-03-16
| Hi Maggie,
I have the same hobbies as you.Plus,I like reading fictions,biographies and history books. Nice to meet you! |
|
19803 - | | | 19832 - Reply from Makenzie87 (USA) - 2017-02-14
| | ME AND YOU have the same hobbies! I love school. I wanna be A MATH teacher when i get older! |
|
19803 - | | | 19808 - Reply from Justin229 (Canada) - 2017-01-17
| | Maggie, what do you think of Pope Francis and Pope John Paul II? |
|
Dans un repère orthogonal (o,i,j) , placer le point A de coordonnées (2;-1)
1) Soit le vecteur u de coordonnées (-4;-2) Construire les points B et C tels que : AB = u
et CA=u
2) Calculer les coordonnées des points B et C
3° Que peut-on dire du points A? Justifier
4) Placer les points d (4;3) et E(8;1)
Calculer les coordonnées des vecteurs BD et AE que peut-on en déduire? |
 Anyone who could help me with derivatives? I'll write a test in a few days and I don't understand anything :-( |
19741 - | | | 19802 - Reply from karan15 , 17 yrs (india) - 2017-01-12
| | may i help you. |
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19741 - | | | 19757 - Reply from Alix192 , 18 yrs (France) - 2016-11-20
| | another one |
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19741 - | | | 19750 - Reply from Leah83 (US) - 2016-11-15
| | here someone |
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What math are you studying in 7th grade? |
I want to find anyone who love maths to make friends!!!
These days I'm studying quadratic equation with one unknown.
XD I kidding that I like maths but it doesn't like me,I often get low marks in maths exams...
Can you offer me some suggestions?
Thanks a lot! |
19720 - | | | 19762 - Reply from Vikas167 , 16 yrs (INDIA) - 2016-11-23
| | Very Easy math But you do it More then paractice |
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I would like to help other people to learn English, but you would need to speak French.I have very good grades, and am happy to help in any other subjects, as well. |
19628 - | | | 19703 - Reply from Eva223 (USA) - 2016-09-24
| | It's very kind of you. |
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I am in need of someone to help me with ratio and probability in maths? Please message mee:))) |
19558 - | | | 19624 - Reply from Hannah-lee27 (Jamaica) - 2016-07-19
|  Algebra, Consumer Arithmetics,Computations and Numbers, Geometry and Trigonometry, Measurements, Statistics and a whole lot more |
|
19558 - | | | 19561 - Reply from Justine 177 , 17 yrs (Belgium) - 2016-05-21
| Conics (equation of ellipses, circles,...)
Logarithm
Probability
...
What about you? |
|
bonjour comment calculer des angles pour acb et pour cab en sachant que b = 66° et que sur le segment d 145° merci pour votre aide |
Hiya. In Iowa right now, we are doing testing in school. I was wondering if someone could help me with my algebra? Also, in the spring my excel class is taking the ACT, and I would love if someone could help me study:) |
19454 - | | | 20246 - Reply from Anthony90 (usa) - 2018-06-24
| Hello, please contact me through my email anthonystevens481@gmail.com
I can help in your studies including mathematics. |
|
19454 - | | | 19548 - Reply from Sandy232 (India) - 2016-05-07
| Hi Kayla!
I can help you with your algebra and your studies |
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I need help on surface area of a prism.I just need to know what the base is in this equation.
Surface Area=Perimeter times Height plus two times base.
I just dont know what the base is. |
My son has a homework assignment to compare one grain of rice and one slippery fish. Anyone have any idea where I can find one slippery fish story? |
19392 - | | | 19411 - Reply from Lilian207 (UK) - 2015-12-20
| Hi Mike,
I can help with the "one slippery fish" story. Cheers! |
|
I like to get help from mathematical teachers in srilanka or other country. Please send me a reply if you can help me. I got 93 marks for last examination. |
19383 - | | | 19718 - Reply from Juma145 , 26 yrs (Kenya) - 2016-09-29
| | I can help u in Mathematics. |
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hey,pour demain j'ai un exo de math voici le probleme:
une fabrique de papier vend de la pate a papier le cout de production de q tonnes de pate a papier est donner en milier d'europar:
C(q)=0,02q (au carré)+0,1q+9 |
I sometimes like to study advance maths even though I'm only 8. I mean the logaritihms, sine,cosine, tangent, quadratic graphs and formulas (also quadratic formulas). This is what you will get tested in secondary school(middle school that means). But I might be still learning the ropes. |
19373 - | | | 20127 - Reply from robin18 , 40 yrs (Canada) - 2017-11-29
| | Yes, for this there are so many online tutoring sites those can help students to their study. Like tutor.com, homeworkminutes.com, udemy.com. You can visit them. |
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19373 - | | | 19375 - Reply from Oscar Wong18 , 8 yrs (Hong Kong) - 2015-11-21
| | I just want to have some help on hexadecimal and mostly duodecimal. I always wonder about figuring out 89 digits of pi(3.1415926535897932846264338...). And to the computer science stuff also about maths, binary code which is some other stuff. I'm not even good at Kakuro so don't give me some 600th prime number. But I'm okay at adding/subtracted negative or positive integers and know how to do vectors. |
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Hey there guys! Today, I'm going to show all of you how to easily solve any quadratic equation! Yes, thats right!
First, you need to know how to get a quadratic problem. Look at this one:
X² + 3X + 5 = 0
This is a quadratic problem. Now lets say you have this problem:
X² + 3X = 5
Uh oh! This isn't a quadratic anymore! Do not worry. We can easily make it a quadratic, by doing this:
X² + 3X + ¯5 = 5 + ¯5
Then it turns into:
X² + 3X + 5 = 0
What we did was we had to get a 0 on the right side of the problem. To do so, we had to add 5's opposite which is ¯5. 5 plus ¯5 is 0. But what we do on one side, we must do on the other. So if we add ¯5 on one side, we must add ¯5 on the other side! Then we just work it out. You might be wondering why it came out like "X² + 3X + ¯5 = 0" instead of "X² + ¯2X = 0".
The reason is because of the Hippopotamus rule. You can only add "like things" together. Only X²'s can be added to X²'s. X's can only be added to X's, and numbers can only be added to numbers.
Try and make these quadratics:
X² + 2X = 6
X² - 10X = 12
X² + 4X = 8
Good, now that you know how to convert, lets move on!
Here is our Quadratic Formula:
X = ¯B ± √B² - 4 • A • C / 2 • A
Don't be afraid! It is very easy if you look at it hard enough. Lets look at a quadratic:
X² + 3X + ¯5 = 0
I'm going to give each number(X², 3X and ¯5) a name tag. The name tags will be A, B and C. The first number(X²) will be A, the second(3X) is B and the third(¯5) is C. We can now add these to our Quadratic Formula. Lets look at the first part of the Formula:
X = ¯B ±
This is where we put our B name tag, so instead of writing "X = ¯B ±" we will write just the number, which is now "X = ¯3 ±" See? Lets do the next part:
√B² - 4
Instead of writing that, we will write "√3² - 4"
So this is what we have so far:
X = ¯3 ± √ 3² - 4
Your doing great! Lets continue...
Next, we have A • C
So instead of writing that, we will write "1 • ¯5"
Why did we put 1 instead of X²? Because you ONLY put the numbers. If there is no number by X², then we just put a 1. In fact, X² can also be read as 1X².
Anyway, time for our last part!
Here we have / 2 • A
So we will write "/ 2 • 1
Lets look at our Formula again:
X = ¯B ± √ B² - 4 • A • C / 2 • A
So instead of that, we will write:
X = ¯3 ± √ 3² - 4 • 1 • ¯5 / 2 • 1
Now lets solve it!
Lets not worry about the X = ¯3 ± √ part yet. So we have now "3² - 4 • 1 • ¯5"
3² is just like saying "3 • 3", which is 9. So now its:
9 - 4 • 1 • ¯5
In math, we always multiply and divide first. 4 • 1 is 4, and then 4 • ¯5 is ¯20. If you multiply a positive number with a negative, it will be a negative, always. Negative times a negative will be a positive.
Anyway, now we have 9 - ¯20, which is 29. If this confuses you, think of negative numbers as subtracting. If you have 5 - 2, the answer is 3. But you can change the 5 - 2 to 5 + ¯ 2, which is still 3. You can change a subtraction problem by instead, adding its opposite. So 9 - ¯20 can be 9 + 20, which is 29.
Lets look at our problem so far:
X = -3 ± √ 29 / 2 • 1
√ means "The square root of"
Here are some examples:
√4 is 2 (2 • 2)
√9 is 3 (3 • 3)
√12 is 4 (4 • 4)
It is a number when multiplied by it's self.
√25 is 5 (5 • 5)
So the square root of 29 is around 5.4(We will round it to 5.4). So now we have:
X = ¯3 ± 5.4 / 2 • 1
Lets multiply the last part, making the problem:
X = ¯3 ± 5.4 / 2
The / 2 makes it a fraction by the way. All of this is over 2, like ½...
So ¯3 ± 5.4
The ± means "plus or minus" You can either add the problem, or subtract it. We have to do both. Lets first add.
¯3 + 5.4 is 2.4, so we now have:
X = 2.4 / 2
Now lets subtract!
¯3 - 5.4 is just like saying ¯3 + ¯5.4, which is 8.4. If you add two negative numbers, its the same as adding them.
So lets look at our two answers!
X = 2.4 / 2
X = ¯8.4 / 2
Congratulations! You just solved your first quadratic! If you need help with any Algebra, just ask, I'll be happy to help! |
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19337 - | | | 19374 - Reply from Oscar Wong18 , 8 yrs (Hong Kong) - 2015-11-21
| | Wow! Sounds like you are an expert at quadratic expressions and factorizing them and also including the formula.Then do you know trigonometry and In or maybe even Earl's number formula |
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