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, …

Question

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, …

jhonyy9 · Answer

Lisa do you know what mean arithmetic sequences ?

Lisaneedham · Answer

nope

justus · Answer

Any ideas?

justus · Answer

A set of numbers with a specific structure is an arithmetical sequence. If you take every number in the list and subtract it from the previous sequence, and the outcome is either the same or constant, then an arithmetic sequence was used.