math help please ASAP
posted by Delilah .
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
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