anamarieg14 anamarieg14

20-04-2020
Mathematics

contestada

What is the 38th term of the arithmetic sequence of 21, 14, 7,..

Respuesta :

Wallind11 Wallind11

20-04-2020

Step-by-step explanation:

First term (a) = 21

common difference (d) = 14-21= -7

general equation for nth term = a+(n-1)d

The 38th term of the AP= 21+(38-1)(-7)

= 21+(37)(-7)

= 21 −259= −238

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