Mathematics: Post your doubts here!

[MihirC]

A company makes solid chocolate eggs and their shapes are mathematically similar.​

The diagram shows eggs of height 2 cm and 6 cm.​

The mass of the small egg is 4 g.​

Calculate the mass of the large egg.​

​

I need help with this question. Is there some kind of formula for an eggshape or something?? Please help me and explain to me step by step.​

http://www.xtremepapers.com/CIE/Cambridge IGCSE/0580 - Mathematics/0580_s11_qp_21.pdf<------------- This paper question 6​

​

The markingscheme says the answer is 108 and i dont know how it is??​

right, do you know about LSF and VSF? its a long story, but
(length/length)^3 = volume/volume
in the question it says mass, which is proportional to volume

so (2/6)^3 = 4/x
there you go.

 

[mutilated_grass]

I keep doing stupid mistakes like 3*2=5 whenever I practice to math...lol, this ain't a doubt but just posting

 

[Mohammad Ahmad]

I'll have 22 at 1300. Who'll be earlier than me ??!!

 

[Hamzeh S]

http://www.xtremepapers.com/papers/...s (with coursework) (0581)/0581_s10_qp_41.pdf

Questions 8 D) III) Please guys please !

 

[mutilated_grass]

Malaysians have it the earliest I think or Indonesians...not sure..then the subcontinental people but it doesn't matter because you will get stressed out and not be able to concentrate on your paper if you talk about the paper with someone who already did it. They don't have the solution to it, prolly just a vague memory of the questions...very unreliable

 

[Maz]

Can someone help me in this .(7b)
It is from Nov 05 p2.

 

[mutilated_grass]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Mathematics (with coursework) (0581)/0581_s10_qp_41.pdf

Questions 8 D) III) Please guys please !

the question says, f inverse of x =1.7 and you gotta find out x. This is the same as f(1.7); getting it?? so you can get the answer from your graph by checking the 1.7 value from the x-axis.

 

[bluefa1con]

Can someone help me in this .(7b)
It is from Nov 05 p2.

i answered that question few pages back
answer is 0
if u want to know how use search function

 

[bluefa1con]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Mathematics (with coursework) (0581)/0581_s10_qp_41.pdf

Questions 8 D) III) Please guys please !

i answered it before
http://www.purplemath.com/modules/invrsfcn.htm

 

[mutilated_grass]

i answered that question few pages back
answer is 0
if u want to know how use search function

Search function?

 

[anooshraja]

can any one help replyy plzz MAY JUNE 2011 23 QUESTION 19 AND 12 PL

 

[Maz]

What's search function supposed to mean?

 

[mutilated_grass]

OHH I get it, LOL, search for the page where he answered the question

 

[Hamzeh S]

i answered it before
http://www.purplemath.com/modules/invrsfcn.htm

its only 1 mark :S all of that ?

 

[Hamzeh S]

i answered it before
http://www.purplemath.com/modules/invrsfcn.htm

and after i draw the curve the point of intersection is the answers ?

 

[Zeerik]

1 A bus leaves a port every 15 minutes, starting at 09 00.
The last bus leaves at 17 30.
How many times does a bus leave the port during one day?

 

[Maz]

Oh come on! do I keep browsing through all these pages. Can you atleast tell me the page no

 

[Dexterwarrior12]

34..??!!

 

[PhyZac]

1 A bus leaves a port every 15 minutes, starting at 09 00.
The last bus leaves at 17 30.
How many times does a bus leave the port during one day?

35 times

0900 - 1730 = 0830
0830 / 0015 = 34
34 + 1 = 35

( plus 1 because u include the very first port , the one it started from )

 

[bluefa1con]

and after i draw the curve the point of intersection is the answers ?

you draw a mirrored curve and the answer is at the given value of x