23
RCMultiple Choice

The Binomial Theorem — Cumulative exam

Question 23 • EA Pre-Calculus Credit Recovery

What is the sum of the first 35 terms in the series 7 + 9 + 11 + ...?

Answer
A
29
B
1399
C
1645
D
1435

Explanation

This is an arithmetic series with first term 7 and common difference 2. The 35th term is 7 + 34(2) = 75, so the sum is 35(7 + 75)/2 = 1,435. The correct choice is 1,435.

AI-written and checked against the verified answer.

Previous
Next