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irina1246 [14]
2 years ago
13

Determine whether each sequence is arithmetic or geometric. Find the next three terms.

Mathematics
1 answer:
damaskus [11]2 years ago
4 0
You don't know your terms I suppose.

Arithmetic: goes from one term to the next by adding or subtracting the same amount
Ex. 3,12,21,30,39 (d=9)
(d means difference, use this for arithmetic sequences)

Geometric: goes from one term to the next by multiplying or dividing by the same amount
Ex. 1,2,4,8,16,32,64,128 (r=2) (r means ratio, its just the number multiplied or divided each time)

Answer is c
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Step-by-step explanation:

This question is permutation problem. permutations is the number of arrangements or orderings within a constant group.

The formula for permutation is given as

nPk = n!÷(n-k)!

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Solution to the question

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= 15!÷7!

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Hope this helps
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Step-by-step explanation:

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