College Algebra
7th Edition
ISBN: 9781305115545
Author: James Stewart, Lothar Redlin, Saleem Watson
Publisher: Cengage Learning
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Textbook Question
Chapter 4.6, Problem 13E
Population Growth These exercises use the population growth model.
Bacteria Culture A culture starts with 8600 bacteria. After 1 hour the count is 10,000.
(a) Find a function that models thenumber Ofbacteria nbacteria n(t) after t hours.
(b) Find the number of bacteria after 2 hours.
(c) After how many Will Of bacteria double ?
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Chapter 4 Solutions
College Algebra
Ch. 4.1 - The function f(x)=5x is an exponential function...Ch. 4.1 - Match the exponential function with one of the...Ch. 4.1 - (a) To obtain the graph of g(x)=2x1 , we start...Ch. 4.1 - Prob. 4ECh. 4.1 - Prob. 5ECh. 4.1 - The exponential function f(x)=(12)x+3 has the...Ch. 4.1 - Evaluating Exponential Functions Use a calculator...Ch. 4.1 - Evaluating Exponential Functions use a calculator...Ch. 4.1 - Evaluating Exponential Functions Use a calculator...Ch. 4.1 - Evaluating Exponential Functions Use a calculator...
Ch. 4.1 - Evaluating Exponential Functions Sketch the graph...Ch. 4.1 - Graphing Exponential Functions Sketch the graph of...Ch. 4.1 - Graphing Exponential Functions Sketch the graph of...Ch. 4.1 - Graphing Exponential Functions Sketch the graph of...Ch. 4.1 - Graphing Exponential Functions Sketch the graph of...Ch. 4.1 - Graphing Exponential Functions Sketch the graph of...Ch. 4.1 - Graphing Exponential Functions Graph both...Ch. 4.1 - Graphing Exponential Functions Graph both...Ch. 4.1 - Prob. 19ECh. 4.1 - Prob. 20ECh. 4.1 - Exponential Function from a Graph Find the...Ch. 4.1 - Prob. 22ECh. 4.1 - Prob. 23ECh. 4.1 - Exponential Functions from a Graph Find the...Ch. 4.1 - Exponential Functions from a Graph Match the...Ch. 4.1 - Exponential Functions from a Graph Match the...Ch. 4.1 - Graphing Exponential Functions Graph the function,...Ch. 4.1 - Graphing Exponential Functions Graph the function,...Ch. 4.1 - Graphing Exponential Functions Graph the function,...Ch. 4.1 - Graphing Exponential Functions Graph the function,...Ch. 4.1 - Prob. 31ECh. 4.1 - Prob. 32ECh. 4.1 - Graphing Exponential Functions Graph the function,...Ch. 4.1 - Prob. 34ECh. 4.1 - Prob. 35ECh. 4.1 - Graphing Exponential Functions Graph the function,...Ch. 4.1 - Prob. 37ECh. 4.1 - Prob. 38ECh. 4.1 - Graphing Exponential Functions Graph the function,...Ch. 4.1 - Prob. 40ECh. 4.1 - Prob. 41ECh. 4.1 - Comparing Exponential Function In these exercises...Ch. 4.1 - Prob. 43ECh. 4.1 - Prob. 44ECh. 4.1 - Comparing Exponential and Power Functions In these...Ch. 4.1 - Prob. 46ECh. 4.1 - Prob. 47ECh. 4.1 - Families of Function Draw graph of the given...Ch. 4.1 - Prob. 49ECh. 4.1 - Prob. 50ECh. 4.1 - Difference Quotients These exercise involve a...Ch. 4.1 - Prob. 52ECh. 4.1 - Prob. 53ECh. 4.1 - Mouse Population A certain breed of mouse was...Ch. 4.1 - Prob. 55ECh. 4.1 - Prob. 56ECh. 4.1 - Compound Interest If $10,000 is invested at an...Ch. 4.1 - Compound Interest If $2500 is invested at an...Ch. 4.1 - Compound Interest If $4000 is invested at an rate...Ch. 4.1 - Compound Interest If $4000 is burrowed at a rate...Ch. 4.1 - Prob. 61ECh. 4.1 - Prob. 62ECh. 4.1 - Annual Percentage Yield Find the annual percentage...Ch. 4.1 - Prob. 64ECh. 4.1 - Prob. 65ECh. 4.1 - Prob. 66ECh. 4.2 - The function f(x)=ex is called the___________...Ch. 4.2 - Prob. 2ECh. 4.2 - Evaluating Exponential Functions Use a calculator...Ch. 4.2 - Evaluating Exponential Functions Use a calculator...Ch. 4.2 - Graphing Exponential Functions Complete the table...Ch. 4.2 - Graphing Exponential Functions Complete the table...Ch. 4.2 - Graphing Exponential Functions Graph the function,...Ch. 4.2 - Graphing Exponential Functions Graph the function,...Ch. 4.2 - Graphing Exponential Functions Graph the function,...Ch. 4.2 - Graphing Exponential Functions Graph the function,...Ch. 4.2 - Graphing Exponential Functions Graph the function,...Ch. 4.2 - Graphing Exponential Functions Graph the function,...Ch. 4.2 - Graphing Exponential Functions Graph the function,...Ch. 4.2 - Prob. 14ECh. 4.2 - Prob. 15ECh. 4.2 - Prob. 16ECh. 4.2 - Prob. 17ECh. 4.2 - Prob. 18ECh. 4.2 - Families of function Draw the graphs of the family...Ch. 4.2 - Prob. 20ECh. 4.2 - Prob. 21ECh. 4.2 - Prob. 22ECh. 4.2 - Prob. 23ECh. 4.2 - Prob. 24ECh. 4.2 - Prob. 25ECh. 4.2 - Prob. 26ECh. 4.2 - Logistic Growth Animal populations are not capable...Ch. 4.2 - Bird Population The population of a certain...Ch. 4.2 - Prob. 29ECh. 4.2 - Prob. 30ECh. 4.2 - Prob. 31ECh. 4.2 - Prob. 32ECh. 4.2 - Compound Interest If $2000 is invested at an...Ch. 4.2 - Compound Interest If $3500 is invested at an...Ch. 4.2 - Prob. 35ECh. 4.2 - Prob. 36ECh. 4.2 - Prob. 37ECh. 4.2 - Prob. 38ECh. 4.2 - Prob. 39ECh. 4.3 - logx is the exponent to which the base 10 must be...Ch. 4.3 - Prob. 2ECh. 4.3 - Prob. 3ECh. 4.3 - Match the logarithmic function with its graph. (a)...Ch. 4.3 - The natural logarithmic function f(x)=Inx has the...Ch. 4.3 - The natural logarithmic function f(x)= In (x1) has...Ch. 4.3 - Logarithmic and Exponential Forms Complete the...Ch. 4.3 - By finding the appropriate logarithmic or...Ch. 4.3 - Prob. 9ECh. 4.3 - Prob. 10ECh. 4.3 - Prob. 11ECh. 4.3 - Prob. 12ECh. 4.3 - Prob. 13ECh. 4.3 - Prob. 14ECh. 4.3 - Prob. 15ECh. 4.3 - Logarithmic From Express the equation in...Ch. 4.3 - Logarithmic From Express the equation in...Ch. 4.3 - Logarithmic Form Express the equation in...Ch. 4.3 - Prob. 19ECh. 4.3 - Prob. 20ECh. 4.3 - Prob. 21ECh. 4.3 - Prob. 22ECh. 4.3 - Prob. 23ECh. 4.3 - Prob. 24ECh. 4.3 - Prob. 25ECh. 4.3 - Prob. 26ECh. 4.3 - Prob. 27ECh. 4.3 - Prob. 28ECh. 4.3 - Prob. 29ECh. 4.3 - Prob. 30ECh. 4.3 - Prob. 31ECh. 4.3 - Prob. 32ECh. 4.3 - Prob. 33ECh. 4.3 - Prob. 34ECh. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Logarithmic Equations Use the definition of the...Ch. 4.3 - Evaluating Logarithms Use a calculate to evaluate...Ch. 4.3 - Evaluating Logarithms Use a calculate to evaluate...Ch. 4.3 - Evaluating Logarithms Use a calculate to evaluate...Ch. 4.3 - Evaluating Logarithms Use a calculator to evaluate...Ch. 4.3 - Graphing Logarithmic Function Sketch the graph of...Ch. 4.3 - Graphing Logarithmic Function Sketch the graph of...Ch. 4.3 - Graphing Logarithmic Function Sketch the graph of...Ch. 4.3 - Prob. 52ECh. 4.3 - Finding logarithmic Function Find the function of...Ch. 4.3 - Finding logarithmic Function Find the function of...Ch. 4.3 - Finding logarithmic Function Find the function of...Ch. 4.3 - Prob. 56ECh. 4.3 - Prob. 57ECh. 4.3 - Prob. 58ECh. 4.3 - Graphing Draw the graph of y=4x , then use it to...Ch. 4.3 - Graphing Draw the graph of y=3x , then use it to...Ch. 4.3 - Graphing Exponential Functions Graph the function,...Ch. 4.3 - Prob. 62ECh. 4.3 - Graphing Exponential Functions Graph the function,...Ch. 4.3 - Prob. 64ECh. 4.3 - Graphing Logarithmic Functions Graph the function,...Ch. 4.3 - Prob. 66ECh. 4.3 - Prob. 67ECh. 4.3 - Prob. 68ECh. 4.3 - Graphing Logarithmic Functions Graph the function,...Ch. 4.3 - Prob. 70ECh. 4.3 - Prob. 71ECh. 4.3 - Prob. 72ECh. 4.3 - Domain Find the domain of the function....Ch. 4.3 - Prob. 74ECh. 4.3 - Domain Find the domain of the function....Ch. 4.3 - Prob. 76ECh. 4.3 - Domain Find the domain of the function....Ch. 4.3 - Prob. 78ECh. 4.3 - Prob. 79ECh. 4.3 - Prob. 80ECh. 4.3 - Prob. 81ECh. 4.3 - Prob. 82ECh. 4.3 - Prob. 83ECh. 4.3 - Prob. 84ECh. 4.3 - Domain of a Composition Find the function fg and...Ch. 4.3 - Domain of a Composition Find the function fg and...Ch. 4.3 - Domain of a Composition Find the function fg and...Ch. 4.3 - Prob. 88ECh. 4.3 - Prob. 89ECh. 4.3 - Prob. 90ECh. 4.3 - Prob. 91ECh. 4.3 - Prob. 92ECh. 4.3 - Prob. 93ECh. 4.3 - Prob. 94ECh. 4.3 - Inverse Functions Find the inverse of the function...Ch. 4.3 - Prob. 96ECh. 4.3 - Prob. 97ECh. 4.3 - Prob. 98ECh. 4.3 - Prob. 99ECh. 4.3 - Charging a Battery The rate at which a battery...Ch. 4.3 - Prob. 101ECh. 4.3 - Prob. 102ECh. 4.3 - The Googolplex A googol is 10100 , and a...Ch. 4.3 - Comparing Logarithms Which is larger, log417 or...Ch. 4.3 - Prob. 105ECh. 4.4 - The logarithm of a product of two number is the...Ch. 4.4 - Prob. 2ECh. 4.4 - The logarithm of a number raised to a power is the...Ch. 4.4 - Prob. 4ECh. 4.4 - Prob. 5ECh. 4.4 - (a)Most calculators can find logarithms with...Ch. 4.4 - True or False? (a)log(A+B) is the same as...Ch. 4.4 - Prob. 8ECh. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Evaluating Logarithms Use the Laws of Logarithms...Ch. 4.4 - Expanding Logarithmic Expressions Use the Laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the laws of...Ch. 4.4 - Prob. 35ECh. 4.4 - Prob. 36ECh. 4.4 - Prob. 37ECh. 4.4 - Prob. 38ECh. 4.4 - Prob. 39ECh. 4.4 - Prob. 40ECh. 4.4 - Expanding Logarithmic Expressions Use the Laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the Laws of...Ch. 4.4 - Expanding Logarithmic Expressions Use the Laws of...Ch. 4.4 - Prob. 44ECh. 4.4 - Prob. 45ECh. 4.4 - Prob. 46ECh. 4.4 - Expanding Logarithmic Expressions Use the Laws of...Ch. 4.4 - Prob. 48ECh. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Combining Logarithmic Expressions Use the Laws of...Ch. 4.4 - Change of Base Formula Use the Change of Base...Ch. 4.4 - Change of Base Formula and a calculator to...Ch. 4.4 - Change of Base Formula and a calculator to...Ch. 4.4 - Change of Base Formula and a calculator to...Ch. 4.4 - Prob. 63ECh. 4.4 - Prob. 64ECh. 4.4 - Prob. 65ECh. 4.4 - Use the Change of Base Formula and a calculator to...Ch. 4.4 - Prob. 67ECh. 4.4 - Families of Functions Draw graphs of the family of...Ch. 4.4 - Changeof Base Formula Use the Change of Base...Ch. 4.4 - Prob. 70ECh. 4.4 - Prob. 71ECh. 4.4 - Prob. 72ECh. 4.4 - Wealth Distribution Vilfredo Pareto (1848-1923)...Ch. 4.4 - Prob. 74ECh. 4.4 - Magnitude Of Stars magnitude M Of a Star is a...Ch. 4.4 - Prob. 76ECh. 4.4 - Prob. 77ECh. 4.4 - Prob. 78ECh. 4.5 - Let's solve the exponential equation 2ex=50 . (a)...Ch. 4.5 - Let's solve the logarithmic equation log 3 + log(x...Ch. 4.5 - Prob. 3ECh. 4.5 - Exponential Equations Find the solution of the...Ch. 4.5 - Prob. 5ECh. 4.5 - Prob. 6ECh. 4.5 - Prob. 7ECh. 4.5 - Prob. 8ECh. 4.5 - Prob. 9ECh. 4.5 - Prob. 10ECh. 4.5 - Prob. 11ECh. 4.5 - Exponential Equations (a)Find the exact solution...Ch. 4.5 - Exponential equation (a) Find the exact solution...Ch. 4.5 - Exponential equation (a) Find the exact solution...Ch. 4.5 - Exponential equation (a) Find the exact solution...Ch. 4.5 - Exponential equation (a) Find the exact solution...Ch. 4.5 - Exponential equation (a) Find the exact solution...Ch. 4.5 - Exponential equation (a) Find the exact solution...Ch. 4.5 - Prob. 19ECh. 4.5 - Prob. 20ECh. 4.5 - Prob. 21ECh. 4.5 - Prob. 22ECh. 4.5 - Prob. 23ECh. 4.5 - Prob. 24ECh. 4.5 - Prob. 25ECh. 4.5 - Prob. 26ECh. 4.5 - Prob. 27ECh. 4.5 - Prob. 28ECh. 4.5 - Prob. 29ECh. 4.5 - Prob. 30ECh. 4.5 - Prob. 31ECh. 4.5 - Prob. 32ECh. 4.5 - Prob. 33ECh. 4.5 - Prob. 34ECh. 4.5 - Prob. 35ECh. 4.5 - Prob. 36ECh. 4.5 - Prob. 37ECh. 4.5 - Prob. 38ECh. 4.5 - Prob. 39ECh. 4.5 - Prob. 40ECh. 4.5 - Prob. 41ECh. 4.5 - Prob. 42ECh. 4.5 - Prob. 43ECh. 4.5 - Prob. 44ECh. 4.5 - Prob. 45ECh. 4.5 - Prob. 46ECh. 4.5 - Prob. 47ECh. 4.5 - Prob. 48ECh. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equation Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Logarithmic Equations Solve the logarithmic...Ch. 4.5 - Prob. 61ECh. 4.5 - Prob. 62ECh. 4.5 - Prob. 63ECh. 4.5 - Prob. 64ECh. 4.5 - Prob. 65ECh. 4.5 - Prob. 66ECh. 4.5 - Prob. 67ECh. 4.5 - Prob. 68ECh. 4.5 - Prob. 69ECh. 4.5 - Prob. 70ECh. 4.5 - Prob. 71ECh. 4.5 - Prob. 72ECh. 4.5 - Prob. 73ECh. 4.5 - Prob. 74ECh. 4.5 - Prob. 75ECh. 4.5 - Prob. 76ECh. 4.5 - Prob. 77ECh. 4.5 - Prob. 78ECh. 4.5 - Prob. 79ECh. 4.5 - Prob. 80ECh. 4.5 - Prob. 81ECh. 4.5 - Prob. 82ECh. 4.5 - Prob. 83ECh. 4.5 - Prob. 84ECh. 4.5 - Prob. 85ECh. 4.5 - Prob. 86ECh. 4.5 - Prob. 87ECh. 4.5 - Prob. 88ECh. 4.5 - Prob. 89ECh. 4.5 - Prob. 90ECh. 4.5 - Prob. 91ECh. 4.5 - Prob. 92ECh. 4.5 - Prob. 93ECh. 4.5 - Prob. 94ECh. 4.5 - Prob. 95ECh. 4.5 - Prob. 96ECh. 4.5 - Prob. 97ECh. 4.5 - Prob. 98ECh. 4.5 - Prob. 99ECh. 4.5 - Prob. 100ECh. 4.5 - Prob. 101ECh. 4.5 - Prob. 102ECh. 4.5 - Prob. 103ECh. 4.5 - Prob. 104ECh. 4.5 - Prob. 105ECh. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Prob. 6ECh. 4.6 - Prob. 7ECh. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Prob. 9ECh. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Prob. 14ECh. 4.6 - Population Growth These exercises use the...Ch. 4.6 - Prob. 16ECh. 4.6 - radioactive Decay These exercises use the...Ch. 4.6 - radioactive Decay These exercises use the...Ch. 4.6 - Prob. 19ECh. 4.6 - Prob. 20ECh. 4.6 - Prob. 21ECh. 4.6 - Prob. 22ECh. 4.6 - Prob. 23ECh. 4.6 - Prob. 24ECh. 4.6 - Law of Cooling These exercise use Newton’s Law of...Ch. 4.6 - Prob. 26ECh. 4.6 - Prob. 27ECh. 4.6 - Law of Cooling These exercise use Newton’s Law of...Ch. 4.7 - FindingpH hydrogen ion concentration of a sample...Ch. 4.7 - Prob. 2ECh. 4.7 - Prob. 3ECh. 4.7 - Ion concentration the pH reading of a glass of...Ch. 4.7 - Finding pH the hydrogen ion concentrations in...Ch. 4.7 - Prob. 6ECh. 4.7 - Prob. 7ECh. 4.7 - Prob. 8ECh. 4.7 - Prob. 9ECh. 4.7 - Earthquake magnitude and intensity (a) Find the...Ch. 4.7 - Prob. 11ECh. 4.7 - Prob. 12ECh. 4.7 - Prob. 13ECh. 4.7 - Prob. 14ECh. 4.7 - Prob. 15ECh. 4.7 - Leaf blower the intensity of the sound from a...Ch. 4.7 - Prob. 17ECh. 4.7 - Prob. 18ECh. 4.7 - Prob. 19ECh. 4.7 - Prob. 20ECh. 4.7 - Prob. 21ECh. 4 - Prob. 1CCCh. 4 - Let f be The exponential function f(x)=ax , where...Ch. 4 - If xis large, which function grows faster, f(x)=2x...Ch. 4 - (a) How is the number e defined? (b) Given an...Ch. 4 - Prob. 5CCCh. 4 - Prob. 6CCCh. 4 - Prob. 7CCCh. 4 - Prob. 8CCCh. 4 - Prob. 9CCCh. 4 - Prob. 10CCCh. 4 - Prob. 11CCCh. 4 - Suppose that the initial size of a population is...Ch. 4 - Prob. 13CCCh. 4 - Prob. 14CCCh. 4 - What is the logarithmic scale? If we use a...Ch. 4 - Prob. 16CCCh. 4 - Prob. 17CCCh. 4 - Prob. 18CCCh. 4 - Prob. 1ECh. 4 - Prob. 2ECh. 4 - Prob. 3ECh. 4 - Prob. 4ECh. 4 - Prob. 5ECh. 4 - Prob. 6ECh. 4 - Prob. 7ECh. 4 - Prob. 8ECh. 4 - Prob. 9ECh. 4 - Prob. 10ECh. 4 - Prob. 11ECh. 4 - Prob. 12ECh. 4 - Prob. 13ECh. 4 - Prob. 14ECh. 4 - Prob. 15ECh. 4 - Graphing Exponential and Logarithmic functions...Ch. 4 - Prob. 17ECh. 4 - Prob. 18ECh. 4 - Domain Find the domain of the function....Ch. 4 - Prob. 20ECh. 4 - Exponential Form Write the equation in exponential...Ch. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - Logarithmic Form Write the equation in logarithmic...Ch. 4 - Prob. 26ECh. 4 - Prob. 27ECh. 4 - Prob. 28ECh. 4 - Prob. 29ECh. 4 - Prob. 30ECh. 4 - Prob. 31ECh. 4 - Prob. 32ECh. 4 - Prob. 33ECh. 4 - Prob. 34ECh. 4 - Prob. 35ECh. 4 - Prob. 36ECh. 4 - Prob. 37ECh. 4 - Evaluating Logarithmic Expressions Evaluate the...Ch. 4 - Prob. 39ECh. 4 - Evaluating Logarithmic Expressions Evaluate the...Ch. 4 - Prob. 41ECh. 4 - Prob. 42ECh. 4 - Prob. 43ECh. 4 - Prob. 44ECh. 4 - Prob. 45ECh. 4 - Prob. 46ECh. 4 - Prob. 47ECh. 4 - Prob. 48ECh. 4 - Prob. 49ECh. 4 - Prob. 50ECh. 4 - Prob. 51ECh. 4 - Prob. 52ECh. 4 - Prob. 53ECh. 4 - Prob. 54ECh. 4 - Prob. 55ECh. 4 - Prob. 56ECh. 4 - Prob. 57ECh. 4 - Prob. 58ECh. 4 - Prob. 59ECh. 4 - Prob. 60ECh. 4 - Prob. 61ECh. 4 - Prob. 62ECh. 4 - Prob. 63ECh. 4 - Prob. 64ECh. 4 - Prob. 65ECh. 4 - Prob. 66ECh. 4 - Prob. 67ECh. 4 - Prob. 68ECh. 4 - Prob. 69ECh. 4 - Prob. 70ECh. 4 - Prob. 71ECh. 4 - Prob. 72ECh. 4 - Prob. 73ECh. 4 - Prob. 74ECh. 4 - Prob. 75ECh. 4 - Local Extrema and Asymptotes Draw a graph of the...Ch. 4 - Prob. 77ECh. 4 - Prob. 78ECh. 4 - Prob. 79ECh. 4 - Prob. 80ECh. 4 - Prob. 81ECh. 4 - Prob. 82ECh. 4 - Prob. 83ECh. 4 - Prob. 84ECh. 4 - Prob. 85ECh. 4 - Prob. 86ECh. 4 - Prob. 87ECh. 4 - Prob. 88ECh. 4 - Prob. 89ECh. 4 - Prob. 90ECh. 4 - Compound Interest If $12,000 is invested at an...Ch. 4 - Prob. 92ECh. 4 - Prob. 93ECh. 4 - Prob. 94ECh. 4 - Prob. 95ECh. 4 - Prob. 96ECh. 4 - Cat Population The stray-cat population in a small...Ch. 4 - Prob. 98ECh. 4 - Radioactive decay Uranium-234 has a half-life of...Ch. 4 - Prob. 100ECh. 4 - Radioactive Decay The half-life of radium-226 is...Ch. 4 - Prob. 102ECh. 4 - Prob. 103ECh. 4 - Prob. 104ECh. 4 - pH The hydrogen ion concentration of fresh egg...Ch. 4 - Prob. 106ECh. 4 - Prob. 107ECh. 4 - Prob. 108ECh. 4 - Prob. 1TCh. 4 - Prob. 2TCh. 4 - Prob. 3TCh. 4 - Prob. 4TCh. 4 - Prob. 5TCh. 4 - Prob. 6TCh. 4 - Prob. 7TCh. 4 - Prob. 8TCh. 4 - Prob. 9TCh. 4 - The initialsize of a culture of bacteria is 1000....Ch. 4 - Suppose that $12,000 is invested in a saving...Ch. 4 - Prob. 12TCh. 4 - Prob. 13TCh. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - The Beer-Lambert Law As sunlight passes through...Ch. 4 - Prob. 5PCh. 4 - Modelling the species area relationship that table...Ch. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Logistic Population growth the table and scatter...
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- Population The table shows the mid-year populations (in millions) of five countries in 2015 and the projected populations (in millions) for the year 2025. (a) Find the exponential growth or decay model y=aebt or y=aebt for the population of each country by letting t=15 correspond to 2015. Use the model to predict the population of each country in 2035. (b) You can see that the populations of the United States and the United Kingdom are growing at different rates. What constant in the equation y=aebt gives the growth rate? Discuss the relationship between the different growth rates and the magnitude of the constant.arrow_forwardExponential Decay Is the graph of exponential decay versus time increasing or decreasing?arrow_forwardExponential Growth Is the graph of exponential growth versus time increasing or decreasing?arrow_forward
- Bacteria Growth The number of bacteria in a culture is increasing according to the law of exponential growth. After 3 hours there are 100 bacteria, and after 5 hours there are 400 bacteria. How many bacteria will there be after 6 hours?arrow_forwardDepreciation Once a new car is driven away from the dealer, it begins to lose value. Each year, a car loses 10% of its value. This means that each year the value of a car is 90% of the previous year’s value. If a new car was purchased for $20,000, the value at the end of the first year would be $20000(0.90) and the value of the car after the end of the second year would be $20000(0.90)2. Complete the table shown below. What will be the value of the car at the end of the eighth year? Simplify the expression, to show the value in dollars.arrow_forwardExponential Growth What is the concavity of a graph showing exponential growth?arrow_forward
- Drug Concentration When a drug is administered orally, it takes some time before the blood concentration reaches its maximum level. After that time, concentration levels decrease. When 500 milligrams of procainamide is administered orally, one model for a particular patient gives blood concentration C, in milligrams per liter, after t hours as C=2.65(e0.2te2t) What is the maximum blood-level concentration, and when does that level occur?arrow_forwardRate of Change What can be said about the rate of change of an exponential function?arrow_forwardModeling Human Height with a Logistic Function A male child is 21inches long at birth and grows to an adult height of 73inches. In this exercise, we make a logistic model of his height as a function of age. a. Use the given information to find K and b for the logistic model. b. Suppose he reaches 95 of his adult height at age 16. Use this information and that from part a to find r. Suggestion: You will need to use either the crossing-graphs method or some algebra involving the logarithm. c. Make a logistic model for his height H, in inches, as a function of his age t, in years. d. According to the logistic model, at what age is he growing the fastest? e. Is your answer to part d consistent with your knowledge of how humans grow?arrow_forward
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