Maths, Addmaths and Statistics: Post your doubts here!

[FLRNAB]

each minor division = 1 cm? or each major didvision of grids = 1 cm?

Major division. Axis divisions. Marked Divisions.

 

[FLRNAB]

20?

yeah 20.

But if I removed the divisions and told you the area of that box (90cm). How would you calculate 20?
You will have to reduce x = 9 to x = 8 to get "Even Area"

Using original area:
90/4 = 22.5

Using Even Area:
8x10 = 80
80/4 = 20

 

[Mahnoorfatima]

yeah 20.

Whaaa? Shouldnt it be 16?

 

[***amd***]

But if I removed the divisions and told you the area of that box (90cm). How would you calculate 20?
You will have to reduce x = 9 to x = 8 to get "Even Area"

Using original area:
90/4 = 22.5

Using Even Area:
8x10 = 80
80/4 = 20

know what? we will reduce 9 to 8 not because 8 is even, but because 8 is divisible by 4

 

[***amd***]

Whaaa? Shouldnt it be 16?

no.

 

[Mahnoorfatima]

no.

Ok. But why?

 

[***amd***]

Ok. But why?

make squares of 2 units side. and 4 units ^2 area. and then try to put them in that 8 * 10 = 80 units^2 area.

 

[FLRNAB]

know what? we will reduce 9 to 8 not because 8 is even, but because 8 is divisible by 4

O_O

 

[***amd***]

O_O

what?

 

[FLRNAB]

what?

Realization

 

[asadalam]

My reaction when i do a question right and the er states only the most able were able to answer correctly =D

 

[FLRNAB]

what?

Now tell me if this graph is correct?

http://papers.xtremepapers.com/CIE/...Calculator Version) (4024)/4024_s13_qp_12.pdf
http://papers.xtremepapers.com/CIE/...Calculator Version) (4024)/4024_s13_ms_12.pdf

 

[***amd***]

Now tell me if this graph is correct?

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s13_qp_12.pdf
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s13_ms_12.pdf

lg to sahi raha hai

 

[exploded diper]

so i am a bit lost here...what r u guys talking bout....can sumone explain frm the start.......

 

[***amd***]

Now tell me if this graph is correct?

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s13_qp_12.pdf
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s13_ms_12.pdf

but i dont think there should be the vertical line after 13 40

 

[asadalam]

Now tell me if this graph is correct?

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s13_qp_12.pdf
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s13_ms_12.pdf

Yes it is though i think one of the bars is slightly higher or lower,and thats a mistake..Though its a really impossible speed time graph.How can he be traveling at 17 and stop at the same moment,his inertia would literally cause his bones to move out of his body if he stopped faster than the speed of light

 

[Dream.Eater]

There u go....always draw normal and stuff to get alternate angles.....

Thanks a lot!!

 

[exploded diper]

Yes it is though i think one of the bars is slightly higher or lower,and thats a mistake..Though its a really impossible speed time graph.How can he be traveling at 17 and stop at the same moment,his inertia would literally cause his bones to move out of his body if he stopped faster than the speed of light

so vat bout the last line is it neccessary to make it......and will it be downwards...

 

[exploded diper]

Thanks a lot!!

np.....

 

[princess Anu]

Q3.b

do u know the answer for question 1