Find the 89th term of the arithmetic sequence - 16, - 3, 10, ... - 16,-3,10, ...

1128

Step-by-step explanation:

hello:

this aritmetic seq when the first term is A1 = -16

the common diference is d = 10 - (-3) = (-3) - (-16) = 13

the nth term is : An = A1 + (n-1) d = -16+13 (n-1) = 13n-29

the 89th term when : n=89 A89 = 13 (89) - 29 = 1128