Using & Understanding Mathematics: A Quantitative Reasoning Approach (7th Edition)
7th Edition
ISBN: 9780134705187
Author: Jeffrey O. Bennett, William L. Briggs
Publisher: PEARSON
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Chapter 9.C, Problem 45E
To determine
The density of the substance when it was deposited years ago, if a toxic radioactive substance with a density of milligrams per square centimeter is detected in the ventilating ducts of a nuclear processing building that was used years ago, where the half-life of the substance is years.
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The accompanying data shows the fossil fuels production, fossil fuels consumption, and total energy consumption in quadrillions of BTUs of a certain region for the years 1986 to 2015. Complete parts a and b.
Year Fossil Fuels Production Fossil Fuels Consumption Total Energy Consumption1949 28.748 29.002 31.9821950 32.563 31.632 34.6161951 35.792 34.008 36.9741952 34.977 33.800 36.7481953 35.349 34.826 37.6641954 33.764 33.877 36.6391955 37.364 37.410 40.2081956 39.771 38.888 41.7541957 40.133 38.926 41.7871958 37.216 38.717 41.6451959 39.045 40.550 43.4661960 39.869 42.137 45.0861961 40.307 42.758 45.7381962 41.732 44.681 47.8261963 44.037 46.509 49.6441964 45.789 48.543 51.8151965 47.235 50.577 54.0151966 50.035 53.514 57.0141967 52.597 55.127 58.9051968 54.306 58.502 62.4151969 56.286…
Chapter 9 Solutions
Using & Understanding Mathematics: A Quantitative Reasoning Approach (7th Edition)
Ch. 9.A - Prob. 1QQCh. 9.A - Prob. 2QQCh. 9.A - Prob. 3QQCh. 9.A - Prob. 4QQCh. 9.A - 5. When you nuke a graph of the function \[z =...Ch. 9.A - 6. The values taken on by the dependent variable...Ch. 9.A - 7. Consider a function that describes how a...Ch. 9.A - Prob. 8QQCh. 9.A - Prob. 9QQCh. 9.A - 10. Suppose that two groups of scientists have...
Ch. 9.A - Prob. 1ECh. 9.A - Prob. 2ECh. 9.A - Prob. 3ECh. 9.A - Prob. 4ECh. 9.A - Prob. 5ECh. 9.A - Prob. 6ECh. 9.A - Prob. 7ECh. 9.A - 8. My mathematical model fits the data perfectly,...Ch. 9.A - Coordinate Plane Review. Use the skills covered in...Ch. 9.A - 9-10: Coordinate Plane Review. Use the skills...Ch. 9.A - Identifying Functions. In each of the following...Ch. 9.A - Prob. 12ECh. 9.A - Prob. 13ECh. 9.A - Identifying Functions. In each of the following...Ch. 9.A - Prob. 15ECh. 9.A - Prob. 16ECh. 9.A - Related Quantities. Write a short statement that...Ch. 9.A - Prob. 18ECh. 9.A - Prob. 19ECh. 9.A - Related Quantities. Write a short statement that...Ch. 9.A - Related Quantities. Write a short statement that...Ch. 9.A - 15-22: Related Quantities. Write a short statement...Ch. 9.A - 23. Pressure Function. Study Figure 9.6.
Use the...Ch. 9.A - Prob. 24ECh. 9.A - Prob. 25ECh. 9.A - Prob. 26ECh. 9.A - 25-26: Functions from Graphs. Consider the graphs...Ch. 9.A - Prob. 28ECh. 9.A - 27-30: Functions from Data Tables. Each of the...Ch. 9.A - Prob. 30ECh. 9.A - Prob. 31ECh. 9.A - Prob. 32ECh. 9.A - Rough Sketches of Functions. For each function,...Ch. 9.A - 31-42: Rough Sketches of Functions. For each...Ch. 9.A - Rough Sketches of Functions. For each function,...Ch. 9.A - Rough Sketches of Functions. For each function,...Ch. 9.A - Rough Sketches of Functions. For each function,...Ch. 9.A - Rough Sketches of Functions. For each function,...Ch. 9.A - Prob. 39ECh. 9.A - Prob. 40ECh. 9.A - Rough Sketches of Functions. For each function,...Ch. 9.A - Prob. 42ECh. 9.A - Everyday Models. Describe three different models...Ch. 9.A - 44. Functions and Variables in the News. Identity...Ch. 9.A - Prob. 45ECh. 9.A - 46. Variable Tables. Find data on the Web (or two...Ch. 9.B - A linear function is characterized by an...Ch. 9.B - You have a graph of a linear function. To...Ch. 9.B - The graph of a linear function is sloping downward...Ch. 9.B - Suppose that Figure 9. 11 is an accurate...Ch. 9.B - Which town would have the steepest slope on a...Ch. 9.B - Consider the function price = $100 - ( $3/yr) ×...Ch. 9.B - Consider the demand function given in Example 6,...Ch. 9.B - A line intersects the y-axis at a value of y = 7...Ch. 9.B - Consider a line with equation \[y = 12x - 3\]....Ch. 9.B - Charlie picks apples in the orchard at a constant...Ch. 9.B - What does it mean to say that a function is...Ch. 9.B - Prob. 2ECh. 9.B - How is the rate of change of a linear function...Ch. 9.B - 4. How do you find the change in the dependent...Ch. 9.B - 3. Describe the general equation for a linear...Ch. 9.B - Prob. 6ECh. 9.B - When I graphed the linear function, it turned out...Ch. 9.B - I graphed two linear functions, and the one with...Ch. 9.B - My freeway speed is the rate of change in my...Ch. 9.B - It's possible to make a linear model from any two...Ch. 9.B - Linear Functions. Consider the following graphs....Ch. 9.B - 11-16: Linear Functions. Consider the following...Ch. 9.B - 11-16: Linear Functions. Consider the following...Ch. 9.B - Linear Functions. Consider the following graphs a....Ch. 9.B - 11-16: Linear Functions. Consider the following...Ch. 9.B - 11-16: Linear Functions. Consider the following...Ch. 9.B - 17-22: Rate of Change Rule. The following...Ch. 9.B - 17-22: Rate of Change Rule. The following...Ch. 9.B - 17-22: Rate of Change Rule. The following...Ch. 9.B - Prob. 20ECh. 9.B - Prob. 21ECh. 9.B - Prob. 22ECh. 9.B - 23-20: Linear Equations. The following situations...Ch. 9.B - Prob. 24ECh. 9.B - 23-20: Linear Equations. The following situations...Ch. 9.B - Prob. 26ECh. 9.B - 23-28: Linear Equations. The following situations...Ch. 9.B - 23-28: linear Equations. The following situations...Ch. 9.B - 29-34: Equations from Two Data Points. Create the...Ch. 9.B - 29-34: Equations from Two Data Points. Create the...Ch. 9.B - 29-34: Equations from Two Data Points. Create the...Ch. 9.B - Equations from Two Data Points. Create the...Ch. 9.B - 29-34: Equations from Two Data Points. Create the...Ch. 9.B - Prob. 34ECh. 9.B - Prob. 35ECh. 9.B - Prob. 36ECh. 9.B - Prob. 37ECh. 9.B - Prob. 38ECh. 9.B - Prob. 39ECh. 9.B - 35-42: Algebraic Linear Equations. For the...Ch. 9.B - 35-42: Algebraic Linear Equations. For the...Ch. 9.B - Algebraic Linear Equations. For the following...Ch. 9.B - Linear Graphs. The following situations can be...Ch. 9.B - Prob. 44ECh. 9.B - Linear Graphs. The following situations can be...Ch. 9.B - Prob. 46ECh. 9.B - Prob. 47ECh. 9.B - Prob. 48ECh. 9.B - Wildlife Management. A common technique for...Ch. 9.B - Linear Models. Describe at least two situations...Ch. 9.B - 51. Nonlinear Models. Describe at least one...Ch. 9.B - Alcohol Metabolism. Most drugs are eliminated from...Ch. 9.B - Properly Depreciation. Go to the IRS website, and...Ch. 9.C - Which statement is true about exponential growth?...Ch. 9.C - A city's population starts at 100,000 people and...Ch. 9.C - A city’s population suns at 100,000 people and...Ch. 9.C - India’s 2017 population was estimated to be 1.34...Ch. 9.C - Suppose that inflation causes the value of a...Ch. 9.C - Figure 9.18(b) shows the graph of an exponentially...Ch. 9.C - Polly received a large dose of an antibiotic and...Ch. 9.C - The half-life of carbon-14 is 5700 years, and...Ch. 9.C - Radioactive uranium-235 has a half-life of about...Ch. 9.C - Compare the list two forms of the exponential...Ch. 9.C - Prob. 1ECh. 9.C - Prob. 2ECh. 9.C - 3. Describe how you tan graph an exponential...Ch. 9.C - 4. Describe the meaning of each of the three forms...Ch. 9.C - Prob. 5ECh. 9.C - Prob. 6ECh. 9.C - After 100 years, a population growing at a rate of...Ch. 9.C - When 1 used the exponential function in model the...Ch. 9.C - We can use the hurt that radioactive materials...Ch. 9.C - I used the exponential function to figure how much...Ch. 9.C - Review of logarithms. Use the skills coveted in...Ch. 9.C - Prob. 12ECh. 9.C - Prob. 13ECh. 9.C - Prob. 14ECh. 9.C - Review of logarithms. Use the skills coveted in...Ch. 9.C - 11-26: Review of logarithms. Use the skills...Ch. 9.C - 11-26: Review of logarithms. Use the skills...Ch. 9.C - 11-26: Review of logarithms. Use the skills...Ch. 9.C - Review of logarithms. Use the skills coveted in...Ch. 9.C - Prob. 20ECh. 9.C - Prob. 21ECh. 9.C - Prob. 22ECh. 9.C - Prob. 23ECh. 9.C - Prob. 24ECh. 9.C - Prob. 25ECh. 9.C - Prob. 26ECh. 9.C - 27-34. Exponential growth and decay laws. Consider...Ch. 9.C - 27-34: Exponential growth and decay laws. Consider...Ch. 9.C - . Exponential growth and decay laws. Consider the...Ch. 9.C - . Exponential growth and decay laws. Consider the...Ch. 9.C - . Exponential growth and decay laws. Consider the...Ch. 9.C - Prob. 32ECh. 9.C - Prob. 33ECh. 9.C - . Exponential growth and decay laws. Consider the...Ch. 9.C - Annual vs. Monthly Inflation. Answer the following...Ch. 9.C - Annual vs. Monthly Inflation. Answer the following...Ch. 9.C - Hyperinflation in Germany. In 1923, Germany...Ch. 9.C - Prob. 38ECh. 9.C - 39. Extinction by Poaching. Suppose that poaching...Ch. 9.C - World Oil Production. Annual world oil production...Ch. 9.C - Prob. 41ECh. 9.C - Aspirin Metabolism. Assume that for the average...Ch. 9.C - Prob. 43ECh. 9.C - Prob. 44ECh. 9.C - Prob. 45ECh. 9.C - Metropolitan Population Growth. A small city had a...Ch. 9.C - Rising Home Prices. In 2000, the median home price...Ch. 9.C - Periodic Drug Doses. It is common to take a drug...Ch. 9.C - 49. Increasing Atmospheric Carbon Dioxide. Direct...Ch. 9.C - Prob. 50ECh. 9.C - Inflation Rate in the News. Find a news report...Ch. 9.C - Prob. 52ECh. 9.C - Radiometric Dating in the News. Find a news report...Ch. 9.C - Prob. 54ECh. 9.C - Prob. 55E
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