nategame88 nategame88

22-12-2020
Mathematics

contestada

What is a formula for the nth term of the given sequence? 50, -20,8...

Respuesta :

jcherry99 jcherry99

25-12-2020

Answer:

L = 50 * (-0.4)^(n - 1)

Step-by-step explanation:

r = t2/t1 = -20/50 = - 0.4

a = 50

L = 50 * (r)^(n - 1) Let's see if we can get the answer when n = 3

L=50 * (-0.4)^(3 -1)

L =50* (-0.4)^2

L = 50 * 0.16

L = 8 which is correct

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