ananisaFaritterni
Answered

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

Answer :

caylus
Hello,

Answer C

-10,20,-40,80,...[tex] u_{n+1}=(-2)*u_{n}[/tex]. is geometric

15,-5,-25,-45...[tex] u_{n+1}=u_{n}-20[/tex]. is arithmetic



maddymcg408

Answer:

C. Sequence 2 is arithmetic and Sequence 1 is geometric.

Step-by-step explanation:

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