Question

Identify the 31st term of an arithmetic sequence where a1 = 26 and a22 = -226.
So you go -226=26+21d
so d= -12 Am I right so far?

Answer 1

@Tazmaniadevil @Gabebro13

Answer 2

thats a good start !

Answer 3

give me a sec

Answer 4

So then a31=26-360 so the answer is -334 yes?

Answer 5

Sorry I took so long. Openstudy glitched out

Answer 6

Its alright

Answer 7

And yeah, I don't remember how to do this...

Answer 8

well the formula is an=a1+(n-1)d A being the number in the sequence and n being the desired number. d is the common difference

Answer 9

yes -334

Answer 10

Oh fantastic :) thank you. I have chem next, you guys up for the challenge?

Answer 11

sure ma'am

Answer 12

Sure!