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Mathematics, 25.09.2019 18:00 gabby7542

Determine whether each sequence is arithmetic or geometric. sequence 1: –10, 20, –40, 80, sequence 2: 15, –5, –25, –45,
a. sequence 1 is arithmetic and sequence 2 is geometric.
b. both sequences are geometric.
c. sequence 2 is arithmetic and sequence 1 is geometric.
d. both sequences are arithmetic.
sequence 2 may be arithmetic because -20 but i can't find out what sequence 1 is

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Determine whether each sequence is arithmetic or geometric. sequence 1: –10, 20, –40, 80, sequence...
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