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11-12-2018
Mathematics

contestada

Calculate a57 for the sequence

Calculate a57 for the sequence class=

Respuesta :

11-12-2018

Answer:

A) 78

Step-by-step explanation:

The given sequence is an arithmetic sequence.

Here A1 = -6, common difference = (3/2)

nth term An = a1 + (n -1)d

A57 = -6 + (57 -1)3/2

= -6 + (56)*3/2

= -6 + 28*3

= -6 + 84

A57 = 78

Thank you.

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