View Full Version : i need math help!!!!
Master Hade
28th Aug 2008, 08:33 PM
ok guys who is truly the smartest of all ec'ers figure out this pattern!! I need it for homwork an di just can't get it !
ok here is the pattern
0,3,8,15,24 _ _ _
Ok so i need to know the pattern and the way to get it!!
Ok one way is to add odd numbers I already know that one i need another way!!!!!!!
please help me!
Master Hade
28th Aug 2008, 08:44 PM
seriously anyone can any one help!!! please!
tylerksub
28th Aug 2008, 08:52 PM
0 "+3" 3 "+5" 8 "+7" 15 "+9" 24 "+11" 35 "+13" 48 "+15" 63
Starts with 3 then adds another 2 each step
Psychedelic Bookmarks
29th Aug 2008, 05:32 AM
The next number is 35. The nth term rule = n2-1 (ie n squared minus one).
Does that make any sense to you? You can work this out by drawing a table with n across the top and the sequence below, then in the next row working out the difference between each number in the sequence (the differences are 3, 5, 7, 9 etc). Then draw another row in the table showing the differences between the differences - they are all 2. This tells you that the nth term is a quadratic, ie it involves n squared. Once you know this, it is evident that the full term must be n2-1.
I hope that makes sense. I recommend that you ask your maths teacher about this though, because you need to make sure you really understand it. :) Feel free to ask for more explanation if all this has been gobbledegook.
Paul_UK
29th Aug 2008, 08:55 AM
The next number is 35. The nth term rule = n2-1 (ie n squared minus one).
Yes, that's the answer I came up with too.
panda
29th Aug 2008, 09:03 AM
You guys are ssssssoooooooooo smart.!!:idea::idea::idea::icon_eek:
Master Hade
29th Aug 2008, 02:50 PM
The next number is 35. The nth term rule = n2-1 (ie n squared minus one).
Does that make any sense to you? You can work this out by drawing a table with n across the top and the sequence below, then in the next row working out the difference between each number in the sequence (the differences are 3, 5, 7, 9 etc). Then draw another row in the table showing the differences between the differences - they are all 2. This tells you that the nth term is a quadratic, ie it involves n squared. Once you know this, it is evident that the full term must be n2-1.
I hope that makes sense. I recommend that you ask your maths teacher about this though, because you need to make sure you really understand it. :) Feel free to ask for more explanation if all this has been gobbledegook.
thanks sooo much!
Poring
30th Aug 2008, 01:01 AM
lol this was our topic in math a while back earlier the start of the year. ahh, the terrible memories of this O_O
it was sorta fun tho :D
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