Recent content by rkell48

  1. R

    Help with perpendicular straight line equations

    my lecturer is awful, my lecture notes are brief and don't explain anything i don't understand how to do it :/
  2. R

    Help with perpendicular straight line equations

    Homework Statement Find the equation of the line perpendicular to Homework Equations −8y − 8 − 16x = 0 and passing through the point (18, 0). The Attempt at a Solution -8y = 16x +8 y = =2x -1 -2(x-18) = y - 0 -2x +36 = 0 -2 x = -36
  3. R

    Help with sigma notation where the top value is x?

    hmm? i genuinely have no idea of what you said..
  4. R

    Help with sigma notation where the top value is x?

    Homework Statement In each case, x is an integer between -6 and 6 inclusive. Homework Equations x Σ 2i =12 i=1 The Attempt at a Solution 2x1 = 12 + 2x2 = 12 +...+2x(x) = 12
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