Q: What is the common ratio in this geometric sequence 3 12 48?

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Eight. (8)

The geometric mean of 12 and 16 is 13.8564064606

The geometric mean of 10 and 12 is: 10.9544511501

The Geometric Mean of 12 and 27 is 18.0

The geometric mean of 3 an 48 is 12 [√(3 x 48) = √144 = 12]

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A geometric sequence is a sequence where each term is a constant multiple of the preceding term. This constant multiplying factor is called the common ratio and may have any real value. If the common ratio is greater than 0 but less than 1 then this produces a descending geometric sequence. EXAMPLE : Consider the sequence : 12, 6, 3, 1.5, 0.75, 0.375,...... Each term is half the preceding term. The common ratio is therefore ½ The sequence can be written 12, 12(½), 12(½)2, 12(½)3, 12(½)4, 12(½)5,.....

No, geometric, common ratio 2

36

Yes, that's what a geometric sequence is about.

The common ratio is 2.

The sequence 216 12 23 is neither arithmetic nor geometric.

12 × ratio = -18 → ratio = -18/12 = -3/2 = -1.5 Checking: -18 × ratio = -18 × -3/2 = 27 as required The common ratio is -3/2 (or -1.5)

Because 3 * 2 = 6, 6 * 2 = 12, and 12 * 2 = 24, the common ration of the sequence is 2. If we are given the fact that the sequence does have a common ratio, the answer can be found by simply taking 6/3 = 2.

Eight. (8)

It is neither.

It is neither. It is a quadratic sequence. Un = (x2 - x + 4)/2 for n = 1, 2, 3, ...

This is not a geometric series since -18/54 is not the same as -36/12