# anyone need any maths help??

Showing 1 to 14 of 14

i'll try and help if theres something anyone doesnt understand

Posted: 27-05-11 19:53 by Lauren Jade Tutchener

im doin edexcel mths and i was stuck on a question where you have to find out the volume of a triangle

Modified once, last modified by ayesha malik on Mon 30th May, 2011 @ 17:29

Posted: 30-05-11 17:29 by ayesha malik

I think you mean the volume of a triangular prism;

Find the area of the triangle at the front; half the base times the height.

Once you have done that, just times by the length, job done.

Don't forget the units ; usually cm3 ( centimetres cubed)

Posted: 30-05-11 17:45 by Arron Beckett

you should get the formulae at the front of the paper to work out a triangular prism if you dont then you work out the area of a triangle 1/2absinc (which is definetely at the front of the paper) then times this by the length and it will be the unit cubed so either cm3 or m3

Posted: 30-05-11 20:08 by Lauren Jade Tutchener

y=mx+c

wahh does it mean and how do you do it in a easier version to understand please?

Posted: 30-05-11 20:18 by rameysha khan

y=mx+c  is the general equation of a straight line

y  is the y co-ordinate

m  is the gradient of the line

c is the y-intercept ( where the line crosses the y axis)

Posted: 30-05-11 20:36 by Amy

This is a bit vague so I can understand if you can't help. I'm currently revising for module 5 of AQA maths GCSE. I can do the majority of the topics well, I just struggle with when knowing to apply different methods. Do you have any suggestions for how to identify which method to use for a question?

Posted: 30-05-11 22:56 by Sarah

Sarah wrote:

This is a bit vague so I can understand if you can't help. I'm currently revising for module 5 of AQA maths GCSE. I can do the majority of the topics well, I just struggle with when knowing to apply different methods. Do you have any suggestions for how to identify which method to use for a question?

I would suggest that you do as many past papers as possible, as this allows you to build up that skill.

Modified once, last modified by N. M on Tue 31st May, 2011 @ 09:43

Posted: 31-05-11 09:43 by N. M

I've got a maths exam in less than a weeks time and i am struggling on simultaneous equations.  Could you help me with this topic please. Thanks :)

Posted: 02-06-11 19:35 by samiah

how do you factorise a equation with powers like this 6a^3-9a^2 please explain step by  step thanks .

Posted: 02-06-11 19:58 by mariah

mariah wrote:

how do you factorise a equation with powers like this 6a^3-9a^2 please explain step by  step thanks .

1. take 3 out the brackets bcoz it is a factor of 6 and 9

3(2a^3 - 3a^2)

2. take a ^2 out the bracket

3a^2(2a - 3)

I think this is what you need to do for GCSE

Posted: 03-06-11 10:11 by Pui Pui

thank you! can you please show me how to solve inequalities too!!

with a question like this :2x+5<7

Posted: 03-06-11 12:46 by mariah

2x+5<7

1) replace the inequality with an =

2x+5=7

2) solve this

2x=2

x=1

3) now put the inequality back in

x<1

good luck :)

Posted: 03-06-11 16:00 by Pui Pui

thank you very very much. ive got an exam soon. :-/  if i have any more questions i will let you know. Thanks

Posted: 03-06-11 16:27 by mariah