Which of the following describes the total number of dots in the first n rows of the

Question:

Which of the following describes the total number of dots in the first n rows of the triangular arrangement below?

A. 30
B. 2n
C. n2
D. n(n + 1)
E. 2n + 2(n − 1)

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10 ACT Practice Tests

ISBN: 9780071591461

2nd Edition

Authors: Steven Dulan

Question Posted: Jul 18, 2023 12:49 AM

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Which of the following describes the total number of dots in the first n rows of the

Question:

ROW 1st 2nd WN 3rd 4th 5th

Step by Step Answer:

The correct answer is D One approach to solving this problem is to make a table like the one ...View the full answer

10 ACT Practice Tests

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