MalikahSutton4215 MalikahSutton4215

02-03-2021
Mathematics

contestada

Given the arithmetic sequence 9, 19, 29, 39... find a(n)

Respuesta :

inexgraphics5 inexgraphics5

02-03-2021

Answer:

first of look for their common difference which is subtract first term from second term 19_9=10

Then use the formula.

a+(n_1)d

9+(5_1)10

9+(4)10

9+40

n=49

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