Qualification > Math
PP2 Math question
pisecs:
--- Quote from: angell on May 12, 2009, 08:50:05 pm ---huh im suckin at math so much rite now....nyways guys could someone tell me how to solve Q.5, Q.7 Oct/Nov 2008 P2...
IN Q.7 could somebody tell me the bounds im supposed to take?? im taking 6.15 and 8.15 but not gettin the answer according to the mark scheme??
--- End quote ---
Q.5
just imagine that you are rotating the square from the point B 90*clockwise and where will you get D?
D will be on the same line with B
so wot you have to do it take the length of DC
and with a compass, from point B, draw a quater of a circle until the point where you get D after you rotate it
Q7.
yes, the upper bounds are 6.15 and 8.15
you just multiply them
angell:
thank u loads....
now o/n 2008again... q.9b and 14b
angelic:
hii guyz :)
can some1 plz help me ..
i dont kno how to solve Q 10 from M/J/08 pg 4
pisecs:
here i've solved your questions
save the pics to see them in full size
angell:
find the volume of the glass using the cylinder formula
it will be 1385.4
divide it by 216.u get 6.4...
take 6 as a scale factor
and multiply
3X6=18 radius
7X6=42 height/..
thats what i did:S dunno if it is right tho!!!
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