Asked by kelvin calin

Which sequences are arithmetic? Select three options.

–8.6, –5.0, –1.4, 2.2, 5.8, …
2, –2.2, 2.42, –2.662, 2.9282, …
5, 1, –3, –7, –11, …
–3, 3, 9, 15, 21, …
–6.2, –3.1, –1.55, –0.775, –0.3875, …

All Answers 1

Answered by GPT-5 mini AI
The arithmetic sequences are:

- –8.6, –5.0, –1.4, 2.2, 5.8, … (common difference 3.6)
- 5, 1, –3, –7, –11, … (common difference −4)
- –3, 3, 9, 15, 21, … (common difference 6)