because every number in the set are multiplied by 3 and add with 10 , if the question is ask for new S.D,new interquartile range, and new range, we just need to multiply the original one by 3. For variance square of the k is needed.

I wasn't lying man >_> I got like 10+ wrongs for objective paper lol. How sad is that when I see people here getting like 35+ correct. Barely reaching A- lol

you scare me i got 12 wrong

Don't be scared lol. What I'm hoping for now is 50 marks already A- or else

ps : I got worse. 14 lol

lolx ok I should go memorize my moral nilai now. Good luck for tmr exam

this week stress mod.math , addmath, moral, physics. dam

guys any good source to study ICT? perhaps some spot questions for 2010?

y=mx + c

y = y - intercept?

m = gradient right,

x = x intercept?

c= ????

I sucks in P1 Add Maths LOL..

OK! need help here

1. Given 8^(x-3) = 4^2x / 64 , find value of x

2. If it's given PA = 2PB .. The ratio is 2 for PA while 1 for PB ? or??

3. The vectors a~ and b~ are non-zero and parallel. It is given that (8h-1) a~ = (2k+8)b~ , where h and k are constant. Find the value of h and of k

4. It is given that sin teta = p , where p is a constant and 90 < teta < 180
Find in terms of p

a) sec teta
b) cos 2teta

5. Given y = ( x - 3 )^2 ( 2x - 5 ), find d^2y/dx^2

6. Two variables , x and y are related by the eq y = 2x^2 - 3 / x, find
dy/dx when x = 3 .

7. Given six letter cards

F R I E N D
--> Fours card are arranged to form four-lettered words.
Find, The probability that the words formed have all the consonants.

THANKS =]

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Added on November 28, 2010, 9:36 pmm is gradient
c is y-intercept

y and x are the coordinates ..

This post has been edited by iAdor3 Naz: Nov 28 2010, 09:36 PM

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Added on November 28, 2010, 9:36 pm
m is gradient
c is y-intercept

y and x are the coordinates ..

[/quote]


thanks

You are welcome ariff

wow physic is on this week..... din study at all lols.

wtf..physic this week also? sh!T

same as me .. heh..

Hey all, we cant use 1/2 r^2 θ in math paper?

c is y-intercept

im predicting ogive coming out tomorrow

@Naz
1. Given 8^(x-3) = 4^2x / 64 , find value of x
2^3(x-3)=2^4x / 2^6
2^(3x-9)=2^(4x-6)
3x-9=4x-6
x=-3

2. If it's given PA = 2PB .. The ratio is 2 for PA while 1 for PB ? or??
PA/PB=2/1
PA:PB=2:1

3. The vectors a~ and b~ are non-zero and parallel. It is given that (8h-1) a~ = (2k+8)b~ , where h and k are constant. Find the value of h and of k
8h-1=0
h=1/8
2k+8=0
k=-4

4. It is given that sin teta = p , where p is a constant and 90 < teta < 180
Find in terms of p
sin teta=p, cos teta=-square root(1-p^2), tan teta=-p/square root(1-p^2)
a) sec teta=1/cos teta= -1/square root(1-p^2)
b) cos 2teta=1-2sin^2 teta =1-2p^2

5. Given y = ( x - 3 )^2 ( 2x - 5 ), find d^2y/dx^2
y=(x-3)^2 (2x - 5)
_=(x^2 -6x +9)(2x-5)
_=2x^3 - 5x^2 - 12x^2 +30x +18x - 45
_=2x^3 - 17x^2 + 48x - 45

dy/dx=6x^2 - 34x + 48
d^2y/dx^2=12x -34

6. Two variables , x and y are related by the eq y = 2x^2 - 3 / x, find
dy/dx when x = 3 .
y=2x^2 - 3/x
dy/dx=4x+3/x^2
_____=4(3)+3/9
_____=37/3

7. Given six letter cards

F R I E N D
--> Fours card are arranged to form four-lettered words.
Find, The probability that the words formed have all the consonants.
4P4=24

Well, that my answer, please tell me am i correct for these question.

protractor allow in math paper 2 ?

If ogive , we need to have cumulative frequency and how about histogram ? Lower boundary and upper boundary ? If frequency ? Midpoint