Recent content by viet1919

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    Calculating Vector Magnitude and Angle: A Step-by-Step Guide

    Ah ok I get it now! Wow it amazes me how you can sort of "play" with the numbers and still get the same answer. Thank you so much ehild.
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    Calculating Vector Magnitude and Angle: A Step-by-Step Guide

    At first it was this. Then I think we got rid of the negatives and made it positive. Therefore using the equations 2(a sub x) + b sub x and 2(a sub y) - b sub y
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    Calculating Vector Magnitude and Angle: A Step-by-Step Guide

    Oh so you're saying what I should've done was x: 14.82 - 77.7 y: 21.97 - 41.2 Is that so? And If you looked at the 26.5cos56. I thought it was -26.5cos56. But my teacher said the sign negative sign didn't matter or something. What does he mean?
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    Calculating Vector Magnitude and Angle: A Step-by-Step Guide

    Homework Statement What is the magnitude and angle to Vector B - 2(Vector A)? Homework Equations A sub x: 44cos28 = 38.85 A sub y: 44sin28 = 20.66 B sub x: 26.5cos56 = 14.82 <-- (Does the negative sign matter in 26.5? My teacher said it's not) B sub y: 26.5sin56 = 21.97 The...
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    Solving inequalities with rational expressions.

    I completely understand now. Thank you very much and sorry for such a late reply. What you did was work with each equation individually. Sorry fro not understanding so fast. My brain takes in things differently than most people. When using math terms, I'm not that well at interpreting it unless...
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    Solving inequalities with rational expressions.

    I THINK understand now. Thank you. So... X is not less than 1 because they are the same value making X greater than 1. Is that right?
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    Solving inequalities with rational expressions.

    \frac{5x + 1}{x - 1} ≥ 7 That is what I meant. Sorry. My first time using the forums. I didn't know what I was doing. Now I am still confused on how to solve this. As I mentioned before, in my method of solving this I ended up with a one inequality solution: x ≥ 4 Why is that that's not the...
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    Solving inequalities with rational expressions.

    Homework Statement Identify the solution set of the inequality. Homework Equations 5x + 1 / x- 1 ≥ 7 The Attempt at a Solution I multiplied both sides by x - 1 which gave me 5x+1 ≥ 7x - 7 Then I combined like terms together which gave me 8 ≥ 2x I divided both sides by 2 which gave...
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