# math help please ASAP

posted by
**Delilah** on
.

2.

Identify the sequence as arithmetic, geometric, or neither.

1.6, 0.8, 0.4, 0.2, . . . (1 point)

arithmetic

geometric

neither

3.

5 • 3^n (1 point)

15, 30, 45, 60

5, 15, 45, 135

0, 15, 45, 135

15, 45, 135, 405

4.

Use the function rule ƒ(x) = n • |–1|^n. Find the output ƒ(2). (1 point)

4

3

–2

2

My answers:

2. geometric

3. 5, 15, 45, 135

4. 4