9. Identify the sequence as arithmetic, geometric, or neither. Explain your answer.
1.6, 0.8, 0.4,0.2, . . .
This is a geometric sequence because each term is half of the previous term.
To identify the sequence as arithmetic, geometric, or neither, we need to analyze the relationship between the terms.
In this sequence, we can observe that each term is obtained by dividing the previous term by 2.
Starting from 1.6:
1.6 ÷ 2 = 0.8
0.8 ÷ 2 = 0.4
0.4 ÷ 2 = 0.2
Since each term is obtained by dividing the previous term by 2, this sequence is a geometric sequence.