IGCSE MATHS Doubts

[Shazizzzle]

ok shazzizle has already answered.

v use the same formula

first find the standard width (k)

sw = (h*cw)/f

then find the height

h = f * (sw/cw)
@baladaya - a is 100. 300/75 = 4. 25*4 = 100

YES! A=100.
I SECOND THAT!

[Vin]

this is it i guess .. pls. check i think its wrong .. :\ dunno . . =\

[Ghost Of Highbury]

Umm, June 2007, Q12. Which region is shaded?

here

[Vin]

i think this is the answer. some1 plz check

Even i got the same .. excepting urs is neater ..

[Shazizzzle]

Oh, good. that's what I got too! Thanks guys!

I just got confused with y=5x.

The requires region should be where the y values are greater.

I always thought greater meant further. so y>5x would be FORWARD to the line.
As in, R would be that triangle in the middle.

However I correct myself, and thought the ans I got was weird.
You guys justified it.

[ruruiw 60984]

Help in  Q23 . JUne 2006 P2 >  plz
its making me lose my mind..
 
Thanks in advance

[Baladya]

Aodi lol I did the right thing, i told him to multiply 10 X 10 which gives 100. However i myself made a mistake and added them to get 20
Don't worry, m gonna see lots of these mistakes tommorow (hope not  )

[6394]

formula 4 compound interest ??

[Baladya]

formula 4 compound interest ??

Original amount (1+rate in decimals)^n
n=number of years

[Adzel]

No this is the correct shading;

[ruruiw 60984]

Help in  Q23 . JUne 2006 P2 >  plz
its making me lose my mind..
 
Thanks in advance

[6394]

lol n i am gettin  the triangle as de wanted region R WHY  
HELP PLEAZZZZZZZZ

[Shazizzzle]

Help in  Q23 . JUne 2006 P2 >  plz
its making me lose my mind..
 
Thanks in advance

Umm, reproduce vectors a and b, in different positions, though they must be parallel, of the same magnitude.

[6394]

@ adzel are u sure???

[Vin]

No this is the correct shading;

can u pls explain..  

@ruruiw  im tryin .. a bit tricky tho ..