## anonymous one year ago Which sequences are arithmetic? Check all that apply. –5, 5, –5, 5, –5, … 96, 48, 24, 12, 6 18, 5.5, –7, –19.5, –32, … –1, –3, –9, –27, –81, … 16, 32, 48, 64, 80

1. anonymous

A arithmetic sequence is something that goes up by the same each time.

2. anonymous

Or down.

3. anonymous

The last increases by 16, each time. There fore arithmetric

4. anonymous

The second is also, I believe cause it's being divided by 2. Each time.

5. anonymous

Second to last is Times 3 each time.

6. anonymous

I don't see any others.

7. anonymous

thank you!

8. anonymous

You're welcome!

9. misty1212

HI!!

10. anonymous

Hi misty... again.

11. misty1212

second one is not "arithmetic" it is "geometric"

12. anonymous

Oh .

13. misty1212

since each term gets MULTIPLIED by $$\frac{1}{2}$$ to get to the next one