1.if the 1st difference of a sequence are a constant -7 & the 3rd term is 22, find the 1st 5 terms of the sequence.
or
2. explain how 2 work backwards from & constant 2nd difference 2 extend the following sequence: 1,6,16,31,51,76
9th grade, algebra math, honors. dont ask me to switch to normal classes cuz i wont...
2007-09-08 13:19:06 · 2 answers · asked by [[you're only selling sex now]] 3 in Science & Mathematics ➔ Mathematics
i dont get it
2007-09-08 13:19:39 · update #1
Answer for #1 is 36, 29, 22, 15, 8.
I think. If it is a constant -7, the numbers in the sequence would go down instead of up.
2007-09-08 13:32:21 · answer #1 · answered by dubstyleenation 2 · 1⤊ 0⤋
1) If term 3 is 22, term 4 is 15, term 5 is 8.
Working the other way; term 2 is 29, term 1 is 36.
2) 1,6,16,31,51,76
First differences: 5, 10, 15, 20, 25.
Second difference is 5.
Sequence continues: 106, 141, etc.
2007-09-08 20:33:35 · answer #2 · answered by Robert S 7 · 1⤊ 0⤋