Maths, Addmaths and Statistics: Post your doubts here!

[era30amy]

I didn't even read the formula here.

Cylinder open from one side and cylinder open from two sides have a difference of pi*r^2

You got that right, tiger.

 

[asadalam]

asadalam are you sure about the cylinder thing? Open and closed?

Yup.A double open cylinder we cant calculate its volume,cuz that would mean the thickness of the cylinder and its length would be involved and we cant deduce thickness via a formula.It can never be open at both ends.

 

[era30amy]

Don't answer my questions please.

Distance = speed/time

 

[funky brat]

Yup.A double open cylinder we cant calculate its volume,cuz that would mean the thickness of the cylinder and its length would be involved and we cant deduce thickness via a formula.It can never be open at both ends.

What if it's a pipe?

 

[asadalam]

What if it's a pipe?

But there would be a column of water in that pipe and we would consider that as the volume.

 

[funky brat]

Agar dono side se closed ko closed kehty hain to phir solid kya hota hai?

 

[exploded diper]

So. A cylinder open at both sides is a double open cylinder?

i dont think its such a big deal ...p.s mostly the shape is given .....and the volume is nvr affected to to the cylinder being open or not....

 

[Mahnoorfatima]

Agar dono side se closed ko closed kehty hain to phir solid kya hota hai?

Yar they'll tell you if its open or closed. Plus if there's a hemisphere or a cone on top of a cylinder, you have to omitt the upper surface area of the circle on top of the cylinder.era30amy 's formula was correct.

 

[Mahnoorfatima]

http://papers.xtremepapers.com/CIE/...(Calculator Version) (4024)/4024_w05_qp_2.pdf
Q4 e? I always get stuck at this. -_-

 

[DaniyalK]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w05_qp_2.pdf
Q4 e? I always get stuck at this. -_-

Total cars = 48
Total number of cars belonging to 2-car families = 12
12/48 = 1/4

 

[Lilly2318]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w05_qp_2.pdf
Q4 e? I always get stuck at this. -_-

wen u hv made the bar graph u'll get the ans

 

[asadalam]

tfios? The frog is on stage?

The feeling is often salvaged

 

[Faizan Muhammmad]

A closed cylinder is pretty much self explanatory = it has a top and a bottom

An open cylinder has either a top or a bottom or neither, you will have to decide by looking at the question

 

[Mahnoorfatima]

Total cars = 48
Total number of cars belonging to 2-car families = 12
12/48 = 1/4

total cars 48?

 

[DaniyalK]

total cars 48?

Add up all the numbers in the table or use the bar graph.

 

[princess Anu]

why is the transformation ( A onto E) stretch and not enlargement?

 

[Lilly2318]

why is the transformation ( A onto E) stretch and not enlargement?

its a 2 way stretch

 

[Lilly2318]

why is the transformation ( A onto E) stretch and not enlargement?

first wid factor 2 y inv line then factor 3 x axis inv line

 

[funky brat]

why is the transformation ( A onto E) stretch and not enlargement?

Enlargement main scale factor same hota hai. Jab values differenet hoti hain it means it's stretch.

 

[Mahnoorfatima]

http://papers.xtremepapers.com/CIE/...(Calculator Version) (4024)/4024_w05_qp_2.pdf
Qs 7 part aii?