allierodriguez allierodriguez

12-02-2018
Mathematics

contestada

the 16th term of an arithmetic sequence is -8 and the first term is 12. what is the common difference, d?

Respuesta :

13-02-2018

so the first term a=12
the formula for arithmetic sequence is
xn=a +d(n-1)

x16th= 12+d(16-1)=-8
12+15d= -8
15d = -8-12
d=-20/15= -4/3
the common difference is d =-4/3

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nicolesaha1621 nicolesaha1621

12-03-2021

Answer:

Step-by-step explanation:

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