maths p2

[2009scared]

maths is quite easy but i really hv a doubt in finding median from a given table..
can any1 explain me with that in detail pleasee

[2009scared]

one more doubt june 05 p2 question 17
urgentt

[astarmathsandphysics]

ah=3sin(30*0)=0
b)h=3sin(30*7)=3sin(210)=-1.5
c)The negative sign means the water is below sea level ie the tide is out

For your previous median qestion, complete a cumulative frequency colum. The class interval in which the cumulative total goes more than halfway towards the overall total is the median class.

[2009scared]

Thanks a lot...

[hyebyekadal]

hey guys can anyone help me out with the significant firgures part? or any website? in my textbook its not very clear.
and in all these tests I always mess up on the sf part. and also is ) a signifcant number? also something like 2045 to 2 sf is what? im really confused also theres something about " after the decimal place zero is  significant figure or something...so any help?
thanks in advance

[astarmathsandphysics]

hey guys can anyone help me out with the significant firgures part? or any website? in my textbook its not very clear.
and in all these tests I always mess up on the sf part. and also is ) a signifcant number? also something like 2045 to 2 sf is what? im really confused also theres something about " after the decimal place zero is  significant figure or something...so any help?
thanks in advance

2045 to 1 sf is 2000
to 2 sf is 2000
to 3 sf is 2050
to 4 sf is 2045

[astarmathsandphysics]

31.235
to 1 sf is 30
to 2 sf is 31
to 3 sf is 31.2
tp 4 sf31.24
to 5 sf is 31.235


31.04

to 1 sf is 30
to 2 sf is 31
to 3 sf is 31.0
to 4 sf is 31.04

[theigstudent]

could some one help me with may 05 pap 2
Q 15 b
 
nov 03 pap 2
Q 8 b
Q12 b

[unknown]

hey need loads of help
hm i require help on d topics net ,lines of symettry n rotational 2
also al info abt basic quadrilaterals
n d list of prime no's plzz help
requirement is urgent

[astarmathsandphysics]

could some one help me with may 05 pap 2
Q 15 b
 
nov 03 pap 2
Q 8 b
Q12 b

may 05

gradient=(5-2)/(8-6)=1.5 so y-y₁=1.5(x-x₁) so y-5=1.5(x-8) so y=1.5x-7

nov 03
8b)5k
12b)x=45 and 225

[astarmathsandphysics]

hey need loads of help
hm i require help on d topics net ,lines of symettry n rotational 2
also al info abt basic quadrilaterals
n d list of prime no's plzz help
requirement is urgent

rhombus 2 lines ymmtry, all sides same length rotational symmetry order 2
square 4 lines ymmtry, all sides same length rotational symmetry order 4
paralellogram 0 lines ymmtry, 2 pairsl sides same length, rotational symmetry order 2
rectangle 2 lines ymmtry, 2 pairs sides same length rotational symmetry order 2
trapeium 0 lines ymmtry, 0 sides same length rotational symmetry order 0
kite 1 lines ymmtry, 2 pairs  sides same length rotational symmetry order 0

prime numbers 2,3,5,7,11,134,17,19,23,29,31,37,41,43,47,53,59......

[Locke Lamora]

astarmathsandphysics:
1.wot shud we call u for short??!
2. can u explain inverse of a matrix to me plz?
3. and also functions, hav seen the post by zara on inverse of function, but wot bout simppple functions??
4.Thanks in advance
5.hope u read it b4 2moro
6. there's so many points

[zubair_slipknot]

hey everybody there is a confusing question in may june 2008 paper 2

A cylindrical glass has a radius of 4cm and a height of 6cm.

A large cylinderical jar full of water is a similar shape to the glass.

The glass can be filled with water from the jar exactly 216 times.

Work out the radius and height of the jar.


if anyone can help me out it would be pretty good...thx....done with my physics paper 6

[astarmathsandphysics]

Cube root of 216=6 so r=4x6=24 and h=6x6=36

[zubair_slipknot]

thx a lot for the help