Try It 10.54: Comparing Earthquake Intensities in Chile and Los Angeles
To compare the intensities of the 2014 Chile earthquake (magnitude ) and the 2014 Los Angeles earthquake (magnitude ), express their intensities in exponential form using the relationship . Their intensities are and , respectively. Forming a ratio to compare them yields . By subtracting the exponents, the ratio simplifies to , which evaluates to approximately . The Chile earthquake was about times as intense as the Los Angeles earthquake.
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Ch.10 Exponential and Logarithmic Functions - Intermediate Algebra @ OpenStax
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Evaluating a Logarithm by Converting to Exponential Form
Example: Evaluating Logarithms by Converting to Exponential Form
Graphing a Logarithmic Function by Converting to Exponential Form
Solving Logarithmic Equations by Converting to Exponential Form
Example 10.27: Comparing Earthquake Intensities
Try It 10.53: Comparing Earthquake Intensities in San Francisco
Try It 10.54: Comparing Earthquake Intensities in Chile and Los Angeles
Example 10.18: Converting to Logarithmic Form
Try It 10.35: Converting to Logarithmic Form
Try It 10.36: Converting to Logarithmic Form
Example 10.19: Converting to Exponential Form
Try It 10.37: Converting to Exponential Form
Try It 10.38: Converting to Exponential Form
Evaluating a Logarithm by Inspection
As an adult learner upskilling for a role as a financial data analyst, you are learning to use a forecasting tool that models growth over time. Your training manual states that a specific metric's timeline is modeled by the logarithmic equation . To configure the company's legacy software system, you must manually input this exact relationship in its equivalent exponential form. Which of the following equations should you enter?
You are a Quality Assurance (QA) specialist verifying a technical manual for a company's financial modeling software. The manual lists logarithmic growth models that must be correctly translated into exponential form for the software's calculation engine. Match each logarithmic equation found in the documentation to its mathematically equivalent exponential equation.
You are a junior technician at a sound engineering firm. A manual describes a signal's properties using the logarithmic equation . To convert this into its equivalent exponential form, , you must identify the structural role of each variable. In this conversion, the variable represents the ____ to which the base must be raised.
You are a health informatics technician reviewing a technical manual for a medical database system. The manual states that the relationship between a data scaling factor and the input value is defined by the logarithmic equation . The manual further states that this relationship is mathematically equivalent to the exponential equation . Based on the definition of logarithmic and exponential equivalence, is the manual's statement true or false?
Technical Reference: Logarithmic to Exponential Equivalence
Learn After
Seismologists compare the intensities of earthquakes using the formula , where represents the magnitude on the Richter scale. To compare the intensity of a magnitude 8.2 earthquake to a magnitude 5.1 earthquake, which mathematical ratio should be used?
An insurance risk analyst is comparing historical seismic events to model potential damage using the intensity formula . When comparing the 2014 Chile earthquake (magnitude 8.2) to the 2014 Los Angeles earthquake (magnitude 5.1), the ratio of their intensities simplifies to . This means the Chile earthquake was approximately ____ times as intense as the Los Angeles earthquake.
A public safety officer is preparing a report to compare the 2014 Chile earthquake (magnitude 8.2) and the 2014 Los Angeles earthquake (magnitude 5.1). Arrange the steps the officer should follow to determine how many times more intense the Chile earthquake was using the intensity formula .
A seismic risk analyst for an insurance company is organizing data from 2014 earthquakes for a safety report. Match each seismic detail from the 2014 Chile and Los Angeles events with its correct mathematical representation using the intensity formula .
Simplifying Earthquake Intensity Ratios