Question: A geographer analyzing coastal erosion maps uses remote sensing data and finds that the area of lost land over 8 consecutive years forms an arithmetic sequence. If the total area lost over the 8 years is 448 square kilometers and the sum of the areas lost in the first and eighth years is 112 square kilometers, what is the common difference of the sequence?

Mon, 04 May 2026 05:56:08 +0000

Content under review