## Algebra: A Combined Approach (4th Edition)

Published by Pearson

# Chapter 12 - Section 12.8 - Exponential and Logarithmic Equations and Problem Solving - Exercise Set: 43

#### Answer

11.9 pounds per square inch

#### Work Step by Step

The formula to be used here is given in the question : P = $14.7e^{-0.21x}$ The value of x is given in the question as 1 mile e is an irrational constant used in logarithms and its value is 2.718 (correct to 3 decimal places) Substituting the values of x and e in the formula and solving, we find P to be 11.9 pounds per square inch

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