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  1. D

    Physics: Post your doubts here!

    could u explain q5 a bit? and q8?
  2. D

    Physics: Post your doubts here!

    need help..... http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s09_qp_2.pdf ^q5a and q6c and exp q8bii and iii http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w10_qp_22.pdf...
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    Mathematics: Post your doubts here!

  4. D

    Mathematics: Post your doubts here!

    help asap! expalin only part ii of Q2 and whole 3...... please!
  5. D

    Mathematics: Post your doubts here!

    c 1-0.94= 0.06 in the curve the area in the middle is 0.94, and 0.06 is split equally along the edges on each side ie 0.06/2 so in taking below 32 or above 12, u add one of the sides 0.94+0.03. and then find the z value.
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    Mathematics: Post your doubts here!

    oh finally! THANKU!
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    Mathematics: Post your doubts here!

    um in this question, im finding the z value for 0.94, but the answer's wrong, somehow they are giving the z value for 0.97..... can sm1 pls explain whats going on here?
  8. D

    Mathematics: Post your doubts here!

    thanku!! got it.... ugh i just dont know how im suposed to conc on every single word in the paper.....:/
  9. D

    Mathematics: Post your doubts here!

    Thanku soooooooooooooo much!!!!!! gdluk for ur paper!! oh um 1 thing, can u exp why we multiply the probability by 70?
  10. D

    Mathematics: Post your doubts here!

    um last minute problems.....:/ :( Um just part ii of Q3 And part iii of Q7 thanku sooooooooooooooo much!!!
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    Add Maths now!

    As N(0) is the original number of fish then N in this case will be equal to N(0)/2 so the eq will be N(0)/2=N(0)e^-k(34) Solving this N(0) on both sides gets cancelled and u r left with 1/2=e^-k(34) Take ln on both sides and u get the answer k=0.0204. Hope this helped.:)
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    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he and question 11 OR iii from this paper: http://www.xtremepapers.me/CIE/Cambridg ... 7_qp_1.pdf its from integration.
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    Add Maths now!

    Hey can some one please help me in Q7b of this? http://www.xtremepapers.me/CIE/Cambridg ... 6_qp_2.pdf the answer is 50 its from permutations....
  14. D

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he Hey can some one please help me in Q7b of this? http://www.xtremepapers.me/CIE/Cambridg ... 6_qp_2.pdf the answer is 50 its from permutations....
  15. D

    Chemistry Paper 2

    In this i have problems in: q1:why is it d? Q4:i dont get the whole thing but the answer is c Q10:i dont understand the question at all. the concept goes over my head. the answer is c q29:why d? Q32: the whole thing.Answer is d Please please reply fast! and i posted one q on pg 5... pls answer...
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    Chemistry Paper 2

    these should be pretty simple but God knows why im getting confused......:( The question was: draw structure of poly(propene) In the marking scheme this was given: – CH(CH3) – CH2 – CH(CH3) – CH2 – or full structural formula [1] ALLOW: – [CH(CH3) – CH2]n – The answer i wrote was...
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    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he ^^Thanku thanku thanku!!!! :)
  18. D

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he i need help in Question 5 part b of this paper The answer is:
  19. D

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he I have another question. How du do do q 25 part c of this?
  20. D

    Maths, Addmaths and Statistics: Post your doubts here!

    Re: O'level Maths, Addmaths and Statistics help available he Thank soo much! the answer makes sense now... but how du know what FT(A)=A means???
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