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Free_Kalibri [48]

2 years ago

8

Below are the first several terms in a sequence. 0.4, 2, 10, 50, .. Part A Write a formula for the nth term of the sequence. Be

sure to specify a starting value of n.

1 answer:

bixtya [17]2 years ago

8 0

Answer:

aₙ = 0.4*5ⁿ⁻¹

Step-by-step explanation:

<u>Given sequence:</u>

0.4, 2, 10, 50, ...

<u>The first term is:</u>

a₁ = 0.4

<u>The common ratio is:</u>

r = 50/10 = 10/2 = 2/0.4 = 5

<u>The formula for the nth term is:</u>

aₙ = a₁rⁿ⁻¹
aₙ = 0.4*5ⁿ⁻¹

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