1. A survey was conducted among 100 boys and 60 girls to determine how many of them watched TV in the period during which examinations were written. Their responses are shown in the partially completed table below. Diagram
    13 Jul 2017 19:07
  2. The digits 1 to 7 are used to create a four-digit code to enter a locked room. How many different codes are possible if the digits may not be repeated and the code must be an even number bigger than 5000?
    13 Jul 2017 19:10
  3. Solve for x:
    20 Jul 2017 10:15
  4. The following geometric sequence is given: 10; 5; 2,5; 1,25; ...
    20 Jul 2017 11:16
  5. Consider the series: Sn = -3 + 5 + 13 + 21 + ... to n terms.
    20 Jul 2017 11:22
  6. Given: f(x) = 2x + 1 - 8
    20 Jul 2017 11:25
  7. Given: h(x) = 2x - 3 for -2 ≤ x ≤ 4. The x-intercept of h is Q Diagram
    20 Jul 2017 11:32
  8. The graphs of f(x) = -2x2 and g(x) = -ax2 + bx + c are sketched below.

    Points P and Q are the y-intercepts of f. Points Q and R are the x-intercepts of g. S is the turning point f g. T is the y-intercept of both f and g.
    Diagram
    20 Jul 2017 12:09
  9. The graph of f shows the book value of a vehicle x years after the time Joe bought it. The graph of g shows the cost price of a similar new vehicle x years later. Diagram
    20 Jul 2017 12:32
  10. If f(x) = -x2 - 3x, determine f `(x) from first principles.
    20 Jul 2017 12:43
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