Share

## ‼️PLEASE HELP‼️ Rosita is writing an explicit function for the geometric sequence: 80, 40, 20, 10,… She comes up with t(

Question

‼️PLEASE HELP‼️

Rosita is writing an explicit function for the geometric sequence:

80, 40, 20, 10,…

She comes up with t(n) = 160(1/2)^n

What domain should Rosita use for T so it generates the sequence?

Choose 1 answer

A: n ≥ 0 where n is an integer

B: n ≥ 0 where n is any number

C: n ≥ 1 where n is an integer

D: n ≥ 1 where n is any number

in progress
0

Mathematics
2 months
2021-08-04T19:27:41+00:00
2021-08-04T19:27:41+00:00 2 Answers
0 views
0
## Answers ( )

Answer:The answer is C

Step-by-step explanation:(I had the same Khan Academy question)

Answer:C- where n (greater than or equal to ) 1

Step-by-step explanation:C- where n (greater than or equal to ) 1

Because in that sequence 0 doesn’t make sense since 160 * 1/2 = 80 ^ 0 = 1. Doesn’t make sense since there’s no “1” in that sequence.

It’s not “any number” because It can’t be negative nor a decimal.

So, C.

🙂 hope this helps