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  1. R

    Tree diagrams

    There are 34 men and 32 women at a party. Of these, 13 men and 19 women are married. If 2 people are chosen at random, find the probability that a) both will be men b) 1 will be a married woman and the other an unmarried man c) both will be married Can someone pls help me. I've tried...
  2. R

    Maximum and Minimum

    A piece of wire of length 5 metres is bent to form the hypotenuse and a side of a right angled triangle ABC. Let the length of the side AB be x metres. What is the maximum possible area of the triangle? Thank you for any help in advance!
  3. R

    Locus and the parabola

    1 a) find the equation of the locus of point P, which is equidistant from fixed points A(3,5) and B(-1,2). I've already figured this out. Equation of the locus of point P is 8x + 6y -29. b) show that is locus is the perpendicular bisector of line AB. Could someone please help me with...
  4. R

    Maxima and minima

    Two cars are travelling along roads that intersect at right angles to one another. One starts 200km away and travels towards the intersection at 80kmh^-1 (80km per hour to the power of negative 1) while the other starts at 120km away and travels towards the intersection at 60kmh^-1 ( 60km per...
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