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Eduardwww
14 days ago
14

Which sequences are geometric? Check all that apply. –2, –4, –6, –8, –10, … 16, –8, 4, –2, 1 –15, –18, –21.6, –25.92, –31.104, …

4, 10.5, 17, 23.5, 30, … 625, 125, 25, 5, 1, …
Mathematics
2 answers:
PIT_PIT [3.8K]14 days ago
6 0
16, -8, 4, -2, 1 -15, -18, -21.6, -25.92, -31.104... 625, 125, 25, 5, 1
AnnZ [3.8K]14 days ago
5 0

Presented sequences:

–2, –4, –6, –8, –10,...

16, –8, 4, –2, 1 , ......

–15, –18, –21.6, –25.92, –31.104, …

4, 10.5, 17, 23.5, 30, …

625, 125, 25, 5, 1, ….

Let's determine the ratios.

–2, –4, –6, –8, –10,...

The first sequence decreases by a constant difference of -2, indicating an arithmetic progression.

16, –8, 4, –2, 1 , ......

16 divided by -8 equals -2 and 4 divided by -2 equals -2.

Since the second sequence has a consistent ratio of -2, it qualifies as a geometric sequence.

–15, –18, –21.6, –25.92, –31.104, …

-18 divided by -15 is 1.2; -21.6 divided by -18 is 1.2.

This third sequence shares a common ratio of 1.2, so it is geometric.

4, 10.5, 17, 23.5, 30, …

10.5 divided by 4 is not equal to 17 divided by 10.5.

Since these ratios differ, this isn't a geometric sequence.

625, 125, 25, 5, 1, ….

125 divided by 625 equals 0.2, and 25 divided by 125 is also 0.2.

The fifth sequence features a common ratio of 0.2, making it geometric.

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In the absence of a specific question posed, below are the potential inquiries along with their respective answers:

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steven has 9 different shirts 5 different hats 4 different scarves. Steven thinks that if he picks just two of the three items o
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Answer:

Steven is mistaken.

Step-by-step explanation:

Steven has

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He selects only two out of the three types of clothing. The combinations can be calculated as

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