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There is a field of study called "metamathematics" that attempts to address just that question. If this is a serious question, you might want to begin by going to the library …and exploring the three volume set Principia Mathematica by Whitehead and Russell. (MORE)

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In Science

A mathematical proof is a process that combines statements we know to be true to show something else must be true. Basically, it's just a way of saying something is true, …along with why each step in the reasoning must be true. So for example, assume we know "If a (MORE)

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A lot of things. For example: partial differential equations are used to find weak points in aircraft before they fly, group theory is used to encrypt data over the internet, …multi-particle stochastic processes, can tell us how diseases will spread, and how traffic behaves on roads, as well as how an economy works. Maths is also used in all sciences - everything scientists do they could not do without mathematics. On a lower level, it allows us to count how many things we have, and to decide for instance that 3 loaves of bread is better than 2. (MORE)

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the matrix is the theory that the world as we know it today is really a computer program created by the "machine overlords of the future". it is believed to be used to keep hu…mans under control so they have no possible way to rebel and regain control (MORE)

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Study hard.Try not to make careless mistakes.Ask the teacher for help if you need it, that is what they're there for!Engage in class, show your teacher you engage and pay atte…ntion.Practice. Part of excelling in Math is understanding the material, and part is just being able to recognize which method applies to the particular problem that you are solving. The only way to hone that skill is to practice - eg. do all of the assigned problems. Remember to try as hard as you can. Depending on the level of math course you are in, sometimes it helps to study in groups, and get in with someone who seems to understand the material. And of course, there are several members here on WikiAnswers that like to help. (MORE)

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In Science

When you are between 2 difference pieces of appliances or electronics emitting a white noise and your brain tries to make sense or order out of it by creating words that were …not actually there (MORE)

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In Calculus

A matrix is a field of numbers with rows and columns (see example below). They can reperesent many different things and have numerous applications, especially in computer scie…nce. They can also be used in physics, as columns are often vectors that are analyzed together for one reason or another. Linear Algebra involves the study of matrices. Example: | 2 3 8 | | 5 6 1 | | 4 2 7 | (MORE)

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In Science

Generally, to get many jobs, all you need is a GCSE in mathematics and English - however depending on the job, other people are likely to be more qualified... An AS level in m…athematics is not a large step up from GCSE and so it doesn't open many doors - if you are studying for A levels and applying for university however, the only qualifications you would have would be GCSEs and AS levels, and so your AS levels will help your application for university. (MORE)

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20c + 5 = 5c + 65 Divide through by 5: 4c + 1 = c + 13 Subtract c from both sides: 3c + 1 = 13 Subtract 1 from both sides: 3c = 12 Divide both sides by 3: c = 4 20c + 5 = 5c …+65 20c - 5c= 65 - 5.
15c = 60.
15c/15 = 60/15.
c = 4 (alternative method). (MORE)

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In Algebra

That is called the identity matrix. For example, (3,1,4)t x (1,1,1) = (3,1,4)t In this case (1,1,1) is the identity matrix. Another example is 5 11 1 0 1 11 x = 4 3 0 1 …4 3 (You will have to imagine the brackets around the matrices as I did not know how to draw them in.) In this case 1 0 is the identity matrix. 0 1 (MORE)