Maths, Addmaths and Statistics: Post your doubts here!

[syed1995]

u doing wrong paper its oct/nov 2011 p22 q8

LOL .. i had summer paper opened .. DAMN YOU!

 

[syed1995]

da question on investment bla bla

Seriously ? that's so easy dude ... use your graph to get the answers .. currently i don't have a graph paper or I would have done the question .. i have done it before .. which part is confusing you?

 

[AlphaBeta]

Seriously ? that's so easy dude ... use your graph to get the answers .. currently i don't have a graph paper or I would have done the question .. i have done it before .. which part is confusing you?

from da first to last

 

[AlphaBeta]

Seriously ? that's so easy dude ... use your graph to get the answers .. currently i don't have a graph paper or I would have done the question .. i have done it before .. which part is confusing you?

plsreply

 

[syed1995]

plsreply

what's so hard in that question dude ? just plot the graphs first! .. first for company A where the values are given .. and then for company b using the equation that they have given .. then use the values from the graph to get the answers .. i don't have a graph paper or I would have solved the complete question.

 

[bogus]

Spidey21 do u knw about the planes of symmetry ?? can u give any idea about it !! check this out !!
http://clickpapers.net/past papers/math-/4024_s06_qp_1.pdf

q.16 part a !!

how is its answer = 7 ? :O

its 7 cuz plane= no of lines of symmetry plus 1 ... do let me know if the answers correct

 

[bogus]

what's so hard in that question dude ? just plot the graphs first! .. first for company A where the values are given .. and then for company b using the equation that they have given .. then use the values from the graph to get the answers .. i don't have a graph paper or I would have solved the complete question.

trust me it is it has some stupid multiple concept ... i hardly get it... u better try it too

 

[syed1995]

its 7 cuz plane= no of lines of symmetry plus 1 ... do let me know if the answers correct

The answer is correct.

what about a cylinder bogus ?? how many lines of symmetry will that have??

 

[bogus]

The answer is correct.

what about a cylinder bogus ?? how many lines of symmetry will that have??

infinite in my opinion!

 

[bogus]

The answer is correct.

what about a cylinder bogus ?? how many lines of symmetry will that have??

two of the faces of a cylinder are circles
circles have an infinite number of lines of symmetry
therefore cylinders have an infinite number of planes of symmetry

 

[syed1995]

trust me it is it has some stupid multiple concept ... i hardly get it... u better try it too

I have done it .. its pretty easy .. the concept is to have multiples of 25. the value which is plotted on the graph can be used as multiples of 25.

like if the value on the graph shows a value of 62$ for a 25$ investment after 8 years.

to find price of 500$ after 8 years would be.

500/25=20 times the amount for 25$.

so 62*20 will be the answer.

 

[syed1995]

infinite in my opinion!

but that's for circle .. shouldn't it be infinite+1 ?

 

[bogus]

but that's for circle .. shouldn't it be infinite+1 ?

LOL Totally correct... u deserve an a star!!! What an amazing discovery Mind telling me the final answer?

 

[bogus]

but that's for circle .. shouldn't it be infinite+1 ?

on a serious note why is there a plus 1 always... i wanna know the reason

 

[syed1995]

on a serious note why is there a plus 1 always... i wanna know the reason

well take a prism with an regular hexagon at one end for example.

there are 6 lines of symmetry in it. so there will be 6 in the 3D polygon as well.

PLUS one which goes through the center. and divides the whole prism into two.

like for a cylinder that line will be from one center of the circle to the center of circle on the other side.

use your pen cover to visualize it.

 

[bogus]

well take a prism with an regular hexagon at one end for example.

there are 6 lines of symmetry in it. so there will be 6 in the 3D polygon as well.

PLUS one which goes through the center. and divides the whole prism into two.

like for a cylinder that line will be from one center of the circle to the center of circle on the other side.

use your pen cover to visualize it.

ok tthanks

 

[osama]

ashiqbal thanks man....

 

[HarisLatif]

http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s10_qp_11.pdf Need HElp in Question 9 part b. can't figure out the correct answer!

 

[kitecrystal]

http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s10_qp_11.pdf Need HElp in Question 9 part b. can't figure out the correct answer!

6.5*8=52mm=5.2cm(at least width needed)..
but the answer should be in centimetres,soit will be 6 cm at least...hope u understand...

 

[fatikhalid]

http://www.xtremepapers.com/papers/...(Calculator Version) (4024)/4024_w07_qp_1.pdf
q no 17 part b
i never do understand such questions plz explain how to solve them lyk they say wat wud b the value of n to make it aperfect square and bla bla plz explain this question to me~..