   Chapter 13.CR, Problem 26E ### Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742

#### Solutions

Chapter
Section ### Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742
Textbook Problem

# 2 5 - 2 8 Finding Terms of Arithmetic and Geometric SequencesFind the indicated term of the arithmetic or geometric sequence with the given description.The 20 th term of an arithmetic sequence is 96 , and the common difference is 5 . Find the n th term.

To determine

To find:

The nth term.

Explanation

Given:

The 20th term is a20=96 and common difference is d=5.

Approach:

Since this sequence is arithmetic, its nth term is given by the formula

an=a+(n1)d.

Calculation:

Now,

a20=a+19d=96

a+19d=96 ...(1)

Substitute 5 for d in the first equation (1)

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