Recent content by yawie

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    Nothing much works not even norton

    If its a good antivirus program you need then try out Avast Antivirus, its free and sometimes detects viruses on my comp that norton can't seem to detect..
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    Solve Quadratic Equations: Formula & Factoring

    I didn't really know what the questions were...I was just trying to help my sis... but you answered the question...when you said x+4 = 0 is when you factor and when you use the quadratic equation you get x=-4...Now I know how to explain it to her...thanks! I didn't realize the questions were...
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    Solve Quadratic Equations: Formula & Factoring

    Can anyone explain why when you factorise and use the quadratic equation the answers have different signs? Lets say for x^2 + 5x + 4 If i do it by factoring the answer would be (x+4)(x+1) However, if done by the quadratic equation the answer would be (x-4)(x-1) which doesn't work when u...
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    Where to Find Grade 10 Math Exercises Online?

    Thanks! I'll go check that out! About the quadratic thing. I think the right word was quadratic formula...sorry. =P for instance: lets say for x^2 + 5x + 4 if i do it by trial and error the answer would be (x+4)(x+1) however, if i do it with the quadratic formula...the complicated one...
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    Where to Find Grade 10 Math Exercises Online?

    Hi Does anyone know any good sites that offer Grade ten math exercises? It's for my sister. Canadian grade ten math, she's doing stuff like quadratic equations, factoring, linear equations. Also can someone explain to me why when you factor an equation with the quadratic equation the answers...
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    What Are the Solutions to These Calculus Limits?

    Hi, I have some questions that i need help on, they're due tomorrow, and I've been trying without success the whole weekend! a) lim e^(1/x) log(100+ x) x->0- b) lim ((x^2+3x-10)/(x-2)) log(10^2-x) x->2 c) lim 6^x x->-infinity THanks a lot in advance! I really...
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    Help with using water to produce hydrogen energy

    Hi I need a little help with understanding this process. I have heard it is really simple to produce energy from water using electricity powered from solar energy? How is this energy stored and distributed? Does it have to be used in fuel cells? Most importantly can dirty water be used to...
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