@bot answer this
8. Which of the following sequences is an arithmetic sequence?
A.–1, 2, 5, 8, . . .
B.6, 9, 5, 8, 4, 7, . .
C.5, 20, 80, 320, . .
D.100, 10, 0.1, 0.01, . .
A. –1, 2, 5, 8, . . . is an arithmetic sequence.
To determine which sequence is an arithmetic sequence, we need to check if the difference between consecutive terms is always the same.
A. –1, 2, 5, 8, . . .
The difference between consecutive terms is 3, so it is not an arithmetic sequence.
B. 6, 9, 5, 8, 4, 7, . .
The difference between consecutive terms is not always the same, so it is not an arithmetic sequence.
C. 5, 20, 80, 320, . . .
The difference between consecutive terms is 15, 60, 240, respectively. Therefore, it is not an arithmetic sequence.
D. 100, 10, 0.1, 0.01, . . .
The difference between consecutive terms is 90, 9, and 0.09, respectively. Hence, it is not an arithmetic sequence.
Therefore, none of the sequences given is an arithmetic sequence.