19
QuizMultiple Choice

Topic Test — Cumulative exam

Question 19 • EA Pre-Calculus Credit Recovery

Find the sum of the first 10 terms in the series:-3, 9, -27, 81...

Answer
A
-14763
B
4920
C
44286
D
59049

Explanation

This is a geometric series with first term −3 and common ratio −3. The sum of 10 terms is −3(1 − (−3)¹⁰)/(1 − (−3)) = −3(1 − 59049)/4 = 44,286. The correct choice is 44,286.

AI-written and checked against the verified answer.

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