Question

**Can someone please help me?**.
Determine whether each sequence is arithmetic,
geometric, or neither and find the tenth
term.

a.) 23, 27, 31, 35, 39, …
b.) -12, -5, 2, 9, 16, …
c.) -5, 15, -45, 135, -405, …

Answer 1

ok so an arithmetic sequence is one that has constant difference between two terms
a geometric sequence is one that has a constant number that is being multiplied to get the next number

Answer 2

thats kind of a weird explanation so ill give u an example:
arithmetic: 1,3,5,7,9- add 2
geometric: 2,6,18,54- multiply by 3

Answer 3

Those weren't examples. They were the questions that needed to be answered. I should have maybe did it like this

Determine whether each sequence is arithmetic, geometric, or neither and find the tenth
term.

1.) 23, 27, 31, 35, 39, …

2.) -12, -5, 2, 9, 16, …

3.) -5, 15, -45, 135, -405, …

Answer 4

yea i know. If u want to understand the concept, u should understand the defintions. Im not gonna give u all the answers but with this, u should be able to figure it out

Answer 5

use the examples and my definitions

Answer 6

I don't want the answers... You said it was confusing so I was confused on what you said was confusing.

Answer 7

But I truly don't understand what to do or how to find this out.

Answer 8

ok, no, its simple. An arithmetic sequence is where you add by a constant number. A geometric sequence is where u multiply by a constant number. If neither is possible, then there is no sequence

Answer 9

make sense?

Answer 10

The first would would be arithmetic right?

Answer 11

yup, nice job

Answer 12

Second is neither? And the third would be geometric?

Answer 13

your right with the 3rd one, but the second one does have a sequence

Answer 14

The second one is arithmetic!

Answer 15

yup

Answer 16

nice, u got it!

Answer 17

Can you help me with another question? Please

Answer 18

ok sure

Answer 19

Ok, this is pretty easy if u search it up on the internet. By using a generic template, u can find out everything with just whats given. Do u have a scientific calculator? like a ti-84?

Answer 20

No. I don't :l

Answer 21

mm, i usually just solve it with that. Im not too good with this otherwise. Sorry :(

Answer 22

Is there anything I can do to solve this without one? I need to submit this tonight :{

Answer 23

You could try to do some internet searches for this but I cant help, sorry

Answer 24

Okay. Thanks again