‼️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
MichaelMet 2 months 2021-08-04T19:27:41+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-04T19:29:00+00:00

    Answer:

    The answer is C

    Step-by-step explanation:

    (I had the same Khan Academy question)

    0
    2021-08-04T19:29:16+00:00

    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

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