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  1. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    A solid wooden right circular cone has a slant height of 15cm and a total surface area of 54pi cm^2 a)Show that the radius of the base of the cone is given by r^(2) +15r-54=0 b)Calculate the perpendicular height, in cm to 3sgf, of the cone.
  2. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    Sorry but we never did that...and wat we never did we ppl never know...tis the truth...
  3. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    I haven't a frikin idea how to do that....:( I don't think I have it...Further Math again??
  4. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    gud but 4 is wrong... 4)Volume of Sphere=(1/3 * base area * height)............(sq,base=9*9) .................................=1/3 * 9 * 9 * 12 .................................=324cm^3 Volume of Sphere=Volume of cylinder 324=pi * r^2 * h r= root {324/(pi * 12)} r=2.93cm
  5. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    (3x-5)(x+1) Do my questions...pleaaaseei
  6. Stancy Motha

    New IGCSE Sample Assesment Papers!!

    do u have math
  7. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    1)Simplify the ratio 1 km : 800 m : 50 cm, giving your answer in the form a : b : 1. 2)A length of wire encloses a square of area 144cm^2 a)Calculate the perimeter of the square. The length of wire is now bent it to the shape of a regular hexagon. b)Calculate the area, in cm^2,to 3 sgf, of the...
  8. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    sorry I forgot 'bout that x:y...........y:z 6:5...........4:5 make y values same..by multiplying x:y by 4 & multiplying y:z by 5 x:y:z=24:20:25 it's in one of the 2006 papers rite??
  9. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    wrong 3rd second substitute 3rd second and 2nd second find the difference the ans is 35m.
  10. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    s=20+54t-t^3 a)Find the distance moved in the 3rd second
  11. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    [why is the side of triangle 8 cm? is that not 6? ] oopsie my apologies:cry: ...the question supposed to be 8cm. and u'r methods better than mine...(y) u'r ans right that way...U'r gud have any question for me??
  12. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    Given that sinx=0.5 and 0<x<90 a)WITHOUT USING CALCULATOR,show than tan x=1/(root3) b)express root 3 cos x as a fraction.
  13. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    sorry that's wrong ok draw a hexagon on a peice of paper,now remember it's a regular hexagon now divide into 6 triangles, now a concentrating on a single triangle, it will be an equilateral triangle because the hexagon is regular, and all sides of the triangle will be 8cm now area of one...
  14. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    A regular hexagon has side 6cm.Calculate the area in cm.
  15. Stancy Motha

    IGCSE starting on Friday... pls.post doubts, important notes etc.

    yup next one.. The capacity of a fuel tank is 80 litres of fuel. When the tank is 30% full,Mohammed fills it to its full capacity. The cost of fuel per litre is 65 pence. Calculate in pounds,how much Mohammed spends.
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