Identifying Geometric Sequences Which sequences are geometric? Check all that apply. 10, 7.5, 5.625, 4.21875, ... 160, 40, 10, 2.5, ... 20, 70, 245, 857.5, ... 13, 16.5, 20, 23.5, ... 5, 5.5, 6.05, 6.655, ... 16, 17.1, 18.2, 19.3, ...

Question

Mathematics

Chasity Pratt

10 May, 14:39

Identifying Geometric Sequences Which sequences are geometric? Check all that apply. 10, 7.5, 5.625, 4.21875, ... 160, 40, 10, 2.5, ... 20, 70, 245, 857.5, ... 13, 16.5, 20, 23.5, ... 5, 5.5, 6.05, 6.655, ... 16, 17.1, 18.2, 19.3, ...

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Norah · Answer 1

Geometric means you multiply to get the next number.

The first one is geometric with r = 3/4

The second one is with r = 1/4.

The third one is with r=3.5

The fourth is NOT.

The fifth one is with r=1.1

The sixth is NOT