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  • 15-02-2020
  • Mathematics
contestada

The explicit formula for a sequence is

an=āˆ’1+3(nāˆ’1)

What is the 55th term of the sequence?

Respuesta :

Hrishii
Hrishii Hrishii
  • 15-02-2020

Step-by-step explanation:

[tex] \because \: a_n = - 1 + 3(n - 1) \\ \\ \therefore \: a_{55} = - 1 + 3(55 - 1) \\ \\ \therefore \: a_{55} = - 1 + 3 \times 54 \\ \\ \therefore \: a_{55} = - 1 + 162\\ \\ \huge \blue { \boxed{\therefore \: a_{55} = 161}}\\ \\ [/tex]

Hence, the 55th term of the sequence is 161.

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