which sequences are arithmetic? select three options
Accepted Solution
A:
Answer:The sequences are arithmetic1).-8.6, -5.0, -1.4, 2.2, 5.82). 5, 1, -3, -7, -113). -3, 3, 9, 15, 21Step-by-step explanation:If a sequence is a an AP then there is a common difference d.1) Check sequence 1-8.6, -5.0, -1.4, 2.2, 5.8-5.0 - - 8.6 = 3.6-1.4 - -5.4 = 3.6 It is an AP2) Check sequence 22, -2.2,2.42, -2.662, 2.9282-2.2 - 2 = -4.2-2.662 - 2.42 = -5.082 Not APSimilarly AP sequences are 5, 1, -3, -7, -11-3, 3, 9, 15, 21