daijahduhh17 daijahduhh17
  • 12-11-2017
  • Mathematics
contestada

A sequence is defined recursively using the formula f(n + 1) = –0.5 f(n) . If the first term of the sequence is 120, what is f(5)?

Respuesta :

MathisLif3
MathisLif3 MathisLif3
  • 12-11-2017
f(n+1)=-1/2f(n)
f(n)=-2f(n+1)
given f(1)=120
-2f(1+1)=120
f(2)=-60
f(2)=-2f(2+1)=-60
f(3)=30
f(3)=-2f(3+1)=30
f(4)=-15
f(4)=-2f(4+1)=-15
f(5)=15/2
Answer Link
kileecub06
kileecub06 kileecub06
  • 03-10-2020

Answer:

7.5

Step-by-step explanation:

Answer Link

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