just use n=9:
A(9) = -15 + 2(9-1)
What is the ninth term of the arithmetic sequence defined by the rule below?
A(n) = -15 + 2(n – 1).
A. 1
B. -1
C. 31
D. -31
1 answer
A(n) = -15 + 2(n – 1).
A. 1
B. -1
C. 31
D. -31
1 answer
1 answer
1 answer
1 answer
1 answer