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  1. N

    HARDEST MATH PAPER IN THE HISTORY OF IGCSE 0580 MATH 42 DISCUSSION

    feeling sorry for you :( don't worry i think the threhold will be low this year
  2. N

    HARDEST MATH PAPER IN THE HISTORY OF IGCSE 0580 MATH 42 DISCUSSION

    dude there were 19 angles but 20 lines and n was lines not angles
  3. N

    Math 42 2013

    sorry bbro it the last part was 87 cuz they asked to nearest cm
  4. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    px =3sx means ratio is 3 so 1.2 * 3^2 and get answer
  5. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    i explained this same question yesterday to someone if u can find it.. anyways the only thing u need to know is that 1/3*pi*x*x*y = W so a cone 3 times larger to radius x and hight y means 3x radius and 3y height substitute this in the formula of cone 1/3*pi*3x*3x*3y take 1/3*pi*x*x*y common...
  6. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    sorry didn't get you
  7. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    anytime :) for more help add me on facebook [email protected]
  8. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    h(x)^-1=2 means h(2) 3^2=9
  9. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    180-42 =138 cyclic quadrilateral so both angles supplementary
  10. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    3700 hours divide by 24 to get 154.1666667 days .166667 * 24 = 4 154 days and 4 hours
  11. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    multiply the matrix by coordinates for example transform a triangle coordinates 2,1) (3,1) (3,3) let matrix be 0 -1 1 0 0 -1 2 3 3 1 0 x 1 1 3 sorry can't put brackets x is used as multiplying sign
  12. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    the probablity of not getting a 2 is 4/6 = 2/3 probablity of getting a 2 is 2/6 =1/3 so both denominators are 3 the final fraction is 243 so 3*3*3*3*3=243 so 5 fractions mean answer is 5
  13. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    i got 3 because 4/6 simplified denominator =3 and 2/6 simplified so denominator = 3 again so all fractions have denominator of 3 and 3^5
  14. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    its a bit tricky 1st you need to find 243 as a power of 3 so it is 3^5 which means there are 5 fractions.. n=5
  15. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    well 9+9 not possible as then it would be 8+8+9+9+x+16 but this way 8 is not the mode well they said 2 set so 7,8,8,10,11,16 and 8,8,810,10,16 only possible choice, in this one i took 3 eights
  16. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    well median mode is 8,median 9,mean is 10 and 16 is largest so _ _ _ _ _ 16 _ _ x y _ 16 x+y/2 must be 9 _ _ 8 10 _ 16 mode is 8 so another 8 must exist _ 8 8 10 _ 16 mean is so z 8 8 10 w 16 z+8+8+10+w+16 must be equal to 60 so only 2 choice z=8 and w=10 or z=7 and w=11 note z must be grater...
  17. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    check post number #372 and #374
  18. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    ok post your question again i will try to do it here
  19. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    add me on facebook and i will explain you there.. it is not possible to explain here
  20. N

    I'm an IGCSE Maths Teacher - Post your questions here.

    guyz its really difficult to explain here so you guyz can add me on facebook, [email protected] its much better over there
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