# Set up appropriate equations and solve the given stated problems. All numbers are accurate to at least

## Question:

Set up appropriate equations and solve the given stated problems. All numbers are accurate to at least two significant digits.

A number m is the harmonic mean of number x and y if 1/m equals the average of 1/x and 1/y (divide 1/x + 1/y by 2). Find the harmonic mean of the musical notes that have frequencies of 400 Hz and 1200 Hz.

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**Related Book For**

## Basic Technical Mathematics

**ISBN:** 9780137529896

12th Edition

**Authors:** Allyn J. Washington, Richard Evans