Arithmetic Sequences Practice
Complete this assessment to review what you've learned. It will not count toward your grade.
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Question
Use the image to answer the question.
An illustration shows three grids with boxes shaded in an X pattern inside. The first is a 6 by 6 grid labeled as term 1, the second is an 8 by 8 grid labeled as term 2, and the third is a 10 by 10 grid labeled as term 3. In all the grids, the diagonal boxes extending from the corners to the center are shaded. In term 1, 12 boxes are shaded, in term 2, 16 boxes are shaded, and in term 3, 20 boxes are shaded.
What are the first three terms of the arithmetic sequence represented by the number of shaded tiles and the common difference?
(2 points)
The first three terms are
,
, and
, and the common difference is
.
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