3
QuizMultiple Choice
Geometric Series
Question 3 of 10 • 2025/26 Algebra II B CR
What are the values of and r of the geometric series?1 + 3 + 9 + 27 + 81
Answer
A
a 1 = 1 and r = one-third
B
a 1 = one-third and r = 1
C
a 1 = 1 and r = 3
D
a 1 = 3 and r = 1