A marine police port leaves port A to intercept the pirate boat at M as it

# A marine police port leaves port a to intercept the

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A marine police port leaves port A to intercept the pirate boat at M as it moves from B to C in the shortest time possible. i) How far from port A will the two boats meet at M. (2 marks) ii) If the boats meet after 2 hours, what’s the speed of the marine police boat? (1 mark) 9

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20) The diagram below shows a flower vase of depth 18cm. the ratio of the top and bottom diameters is 5:2 (take π 3.142) 18cm 24cm Calculate: a) The volume of the flower vase (7 marks) b) The curved surface area of the flower vase. (3 marks) 10
21) Given the function y = 7 + 3x – x 2 a) Complete the table. (2 marks) x -3 -2 -1 0 1 2 3 4 5 6 y -11 7 7 -11 b) On the grid provided and using a suitable scale, draw the graph of y = 7 + 3x – x 2 (3 marks) c) On the same grid, draw the straight line. Y = 4 – x (2 marks) d) Use your graph to solve the equation x 2 – 4x – 3 = 0 (2 marks) e) Determine the coordinates of the turning point of the curve. (1 mark) 11
• Fall '18
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