I have collected the data for a 2x2 box on a 10x10 grid. I know the difference is 10 but I can't seem to get my head round the nth term as there is a 2nd line of difference 2? I don't want anyone to do it for me just explain in a dummy method coz its driving me mad. thanks
2007-03-15 01:41:38 · 6 answers · asked by S-J S 1 in Education & Reference ➔ Homework Help
hi the difference isn't 10 its -10(if u hav the same q as me )e.g12 times 23 (times diagonaly)then13times22 then u take them away 276-286=-10 then u give a letter for each number eg 12=a 13=b 22=c 23=d so then u know a times d takeaway b times c is =-10 so the formula would b ad-bc=-10 thats how far ive got hope ive helped is quite hard ill help u more if i find more ok and if u can can u help me bye
2007-03-16 09:28:43 · answer #1 · answered by nav j 1 · 0⤊ 0⤋
rite this is 10 x 10 grid
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
Rite this how far im going, eg get 2x2 14, 15, 24, 25
14 x 25 = 350
15 x 24 = 360
The difference is 10
you take 350 - 360 = 10
Carry on with the pattern and you will find the differnet you get is a 10, do 3x3, 4x4, you will notice that it goes up in 10.
Hope this help but good luck
2007-03-15 02:34:55 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If you say on your 10 x 10 grid that your 2x2 box contains the numbers
14 15
24 25.
the diagonal difference (d) is (15 x 24) - (14 x 25)
this can be put into the nth term by replacing the 14 with n
n n+1
n+10 n+11
replace these into the equation to find d
d = (n+1)(n+10) - n(n+11)
expand out the brackets and go from there. once you have the equation, make sure you replace that with a single number to prove the point!!!!!
follow a similar path for the 3x3 box and you should get there!!!!
2007-03-15 12:07:47 · answer #3 · answered by squeegy 4 · 0⤊ 0⤋
The remedial classification numbers variety relying on the school and which direction you're taking. at my college there is math0309, math0310, and math0312. seek for one with a nil in the front meaning that's remedial then make certain which one you want to be in. in case you at the prompt are not particular, you should consult an adviser first.
2016-12-02 01:11:33 · answer #4 · answered by Anonymous · 0⤊ 0⤋
There is probably an 'n squared ' in it.
I can't help unless you give me the series of numbers.
2007-03-15 08:57:28 · answer #5 · answered by Anonymous · 0⤊ 0⤋
OMG so am i. message me this c/w is crap and its due very soon
2007-03-15 01:46:26 · answer #6 · answered by Anonymous · 0⤊ 0⤋