Which of the following sequences is an arithmetic sequence?
a. {1,4,16,48,…}
b. {−10,5,−2.5,1.25,…}
c. {100,20,4,0.8,…}
d. {−10,−3.5,3,9.5,…}

C. since you are constantly dividing by 5

100 ÷ 5 = 20

20 ÷ 5 = 4

4 ÷ 5 = 0.8

And so on...

the third one C. {100,20,4,0.8,…}  as it divides by 5

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true

explanation:

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.