Chapter 13.2, Problem 78E

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4th Edition

James Stewart + 2 others

ISBN: 9781305071742

Textbook Problem

**DISCUSS**: **Arithmetic Means **The **arithmetic mean**(or average) of two numbers

Note that

is an arithmetic sequence, then

**(a) **Insert two arithmetic means between

**(b) **Insert three arithmetic means between

**(c) **Suppose a doctor needs to increase a patient’s dosage of a certain medicine from

To determine

**a)**

**To find:**

Two arithmetic means between

Explanation

**Given:**

Numbers

**Approach:**

Since the numbers

**Calculation:**

Since the two arithmetic means form an arithmetic sequence together with

Hence,

To determine

**b)**

**To find:**

Three arithmetic means between

To determine

**c)**

**To find:**

How many arithmetic means must be inserted between

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