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  1. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    this might be helpful for number sequences https://www.xtremepapers.com/community/threads/mathematics.4806/ i think that determinant is only for square matrices
  2. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    any length can be taken but it should be same for the corresponding vertices
  3. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    suppose u have a value of length of rope 98 cm rounded to the nearest 1 cm to find its upper bound 98+(1/2)=98.5 lower bound 98-(1/2)=97.5 take another example length of rectangle is 100 cm rounded to nearest 10 cm breadth of rect is 55 cm rounded to nearest 5 cm then upper bound for area=...
  4. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

  5. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    matrix is =(a b) ( c d) then find determinant =(a*d)-(c*b) Length frm coordinates e.g. A(2,3) b(4,6) length= underroot( (4-2)^2 +(6-2)^2)
  6. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    F It might be a bit unclear but hope that it is of usep
  7. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    bcoz mean=sum/no of things or games then sum = mean*no of games
  8. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    by the way what issue do you have with my caps lock
  9. danial 234

    Biology; Chemistry; Physics: Post your doubts here!

    bring near the two poles of magnet to the pieces , already held with a string. if it is magnet then it will move backward with one pole and come forward with another pole. if it is magnetic it will come forward to the magnet regardless of pole
  10. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    FARHAN I HOPE THAT IT MIGHT HELP http://www.google.com.pk/url?sa=t&rct=j&q=how%20to%20find%20centre%20of%20rotation&source=web&cd=8&cad=rja&ved=0CGoQFjAH&url=http%3A%2F%2Fwww.absorblearning.com%2Fmedia%2Fitem.action%3Fquick%3Dha&ei=1OChUcS0LMiohAfej4HICA&usg=AFQjCNHHHuzMCpCkjr4-xTHzOGLu5Z7TBw
  11. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    T THEN IT WILL BE CORRECT BUT NOT OUTSIDE
  12. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    symmetry ORDER OF ROTATIONAL SYMMETRY SQUARE 4 4 RECTANGLE 2 2...
  13. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    not in trapezium
  14. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    a)AR= AB+BR =p+k(q/2) post the answers of 1st two so i can answer the last part as i m too exhausted to attempt the other parts as well
  15. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    for this type of questions the method is same 1/12+1/18=1/x x= no of days together
  16. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    suppose the image of ABC by rotation is A'B'C' then join all the corresponding points as A to A' ,B to B'. then find the bisector of each line. the point where the bisectors intersect is centre of rotation.
  17. danial 234

    Biology; Chemistry; Physics: Post your doubts here!

    p1v1=p2v2 200*P=300v2 v2=200*P/300 v2=2P/3
  18. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    l let c =cost a= weight of coffee then ca=125/100c *(xa) ca=1.25c*(xa) ca/1.25c=xa a/1.25=xa a/1.25 * 1/a=x 1/1.25=x %age decrease= 1-1/1.25 =20%
  19. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    consider them as equations, then find their location. then simply follow the sign if it is x>0 then shade the area above that line. if it is 3y+x >3 then shade the area above that line. if it is y<x+3 then shade below the line. when there is greater than or equal to sign, or smaller than or...
  20. danial 234

    Maths, Addmaths and Statistics: Post your doubts here!

    a)3y+x=3 3y=-x+3 y=-x/3+3/3 y=-x/3 +1 m= -1/3
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