Recent content by Amaz1ng

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    Solving a 3x3 System of Equations

    Yeah the thing is that I'm not learning exactly why I'm doing these things. We're not learning theory, just applications. I'm just given the steps and that's the end of that lol. Luckily my assignment is finished (TI-89 ftw), and I'll just have to ask in class how exactly to do a 3x3 before the...
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    Solving a 3x3 System of Equations

    Homework Statement 1 1 1 | 2 0 5 2 | 12 0 -4 8 | 0 Answer: 100 | -3 010 | 2 001 | 1 Homework Equations The Attempt at a Solution How did they get the answer? I went over how to do 2x2 w/ someone but 3x3 seems different. Basically this is how I'm...
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    What are your feelings about long gaps between classes & waiting on campus

    Go home until then?
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    Old Lady Makes Clever Profit with Pawnshop

    yeah that was a typo...I meant to say 4.
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    Old Lady Makes Clever Profit with Pawnshop

    The woman probably got forced down to $3 to begin with. Pawn guys set their mind to a price and it's hard to make them budge because they think in terms of how much they can resell it for after they acquire the item. So when the man picks up the necklace, he's most likely going to be paying...
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    Please, can you look over my appeal letter? (academic probation)

    Lol how did you get an "E"? Sorry, I burst out laughing when I saw that. Anyways... It seems too personal and informal. I think you need to tone down on all the explicit details and take the time to "craft" your thoughts properly. Stuff like this: "My heart rate was too fast and I was too...
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    Computer Science, mathematics, or applied math?

    Basically, I'm going to be enrolling into a local university soon but there is a small dilemma as to what exactly I should major in. At first, I thought I wanted computer science but after doing a basic 3d game and tons of other little small projects in various languages (word processor, social...
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    Any idea how to get started on this INSANE puzzle?

    lol...the task is sisyphean for sure. http://www.highiqsociety.org/Sisyphean%20Airlines%20Puzzle%20Challenge.pdf
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    High School Why is the quadratic formula giving me the wrong answers for 4x^2+10x=5?

    My friend, I have no clue why I'm getting the wrong answers. O_o I was under the impression that you just plug the numbers in and it outputs correct answers.
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    High School Why is the quadratic formula giving me the wrong answers for 4x^2+10x=5?

    But seriously, why am I getting the wrong answer here: 4x^2+10x= 5 4x^2+10x - 5 = 0 x=\frac{-10+\sqrt{180}}{8} Answers Incorrect: 3.461 and -23
    • Amaz1ng
    • Thread
    • Formula Quadratic Quadratic formula
    • Replies: 8
    • Forum: General Math
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    Solving Fraction Issues: LCM vs Formula

    Ok yeah but there's another method that looks like this right: \frac{a}{b}-\frac{e}{f}=\frac{a*f-b*e}{f*b} So I'm trying to find out when that's applicable and when it's not.
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    Solving Fraction Issues: LCM vs Formula

    I don't think you guys understand what I'm saying. I'm saying that when I use the LCM method it's different from when I use the cross multiplication method. O_o But shouldn't it yield the same result? I'm obviously missing the logic of the cross multiplication method. ...which is this...
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    Solving Fraction Issues: LCM vs Formula

    Opps...here it is. Simplify: 3c-(\frac{2a+c}{8}-\frac{a+2c}{4})
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    Solving Fraction Issues: LCM vs Formula

    Homework Statement Simplify: 3c-(\frac{2a+c}{8}-\frac{a+2c}{4}) The Attempt at a Solution I got this: \frac{9c}{8} But the answer is: \frac{27c}{8} It's simply an issue with whether I find the LCM or I use this formula: \frac{a}{b}-\frac{e}{f}=\frac{a*f-b*e}{f*b} If...
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    High School Clearing fractions and setting up for the quadratic formula?

    I think that's how they say it in London or something. ;o