Concept explainers
To graph: The data using regression of logarithmic model.
Explanation of Solution
Given: The atmospheric pressure decrease with increasing altitude. At sea level, the average air pressure is approximately 1.03323 kilograms per square centimeter, and this pressure is called one atm. The ordered pair
First plot the points on graph.
For logarithmic regression of h, the input value of log can’t be negative or 0.
So, can’t make any model of ordered pair
To graph: The data using regression of logarithmic model.
Answer to Problem 34E
Explanation of Solution
Given: The atmospheric pressure decrease with increasing altitude. At sea level, the average air pressure is approximately 1.03323 kilograms per square centimeter, and this pressure is called one atm. The ordered pair
First change the ordered pair and the plot it on graph.
For logarithmic regression of p,
To graph: The data using regression of logarithmic model.
Explanation of Solution
Given: The atmospheric pressure decrease with increasing altitude. At sea level, the average air pressure is approximately 1.03323 kilograms per square centimeter, and this pressure is called one atm. The ordered pair
First change the ordered pair and the plot it on graph.
To find: The altitude at which the pressure is 0.75 atmosphere.
Answer to Problem 34E
2.717 km
Explanation of Solution
Given: The atmospheric pressure decrease with increasing altitude. At sea level, the average air pressure is approximately 1.03323 kilograms per square centimeter, and this pressure is called one atm. The ordered pair
The logarithmic function of given data,
Put
Hence, the altitude is 2.717 km.
To find: The pressure at an altitude of 13 km.
Answer to Problem 34E
0.1522 atm
Explanation of Solution
Given: The atmospheric pressure decrease with increasing altitude. At sea level, the average air pressure is approximately 1.03323 kilograms per square centimeter, and this pressure is called one atm. The ordered pair
The logarithmic function of given data,
Put
Hence, the pressure is 0.1522 atm
Chapter 3 Solutions
Precalculus with Limits: A Graphing Approach
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