peoplewallin peoplewallin
  • 11-01-2021
  • Mathematics
contestada

someone help with this
Given a1 = 25 and d = -2, what is the 8th term?

Respuesta :

jimrgrant1 jimrgrant1
  • 11-01-2021

Answer:

a₈ = 11

Step-by-step explanation:

The n th term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 25 and d = - 2, then

a₈ = 25 + (7 × - 2)

   = 25 - 14

   = 11

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