EBK USING AND UNDERSTANDING MATHEMATICS
6th Edition
ISBN: 8220100802713
Author: Briggs
Publisher: PEARSON
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Chapter 3.D, Problem 44E
To determine
a. Write the table expressing all prices in terms of 2000 dollars.
b. If three ounces of gold bought in 1980 and sold it in 2000 give a profit when adjusted to inflation.
c. If three ounces of gold bought in 2000 and sold it in 2010 give a profit when adjusted to inflation.
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A ladder 25 feet long is leaning against the wall of a building. Initially, the foot of the ladder is 7 feet from the wall. The foot of the ladder begins to slide at a rate of 2 ft/sec, causing the top of the ladder to slide down the wall. The location of the foot of the ladder, its x coordinate, at time t seconds is given by
x(t)=7+2t.
wall
y(1)
25 ft. ladder
x(1)
ground
(a) Find the formula for the location of the top of the ladder, the y coordinate, as a function of time t. The formula for y(t)= √ 25² - (7+2t)²
(b) The domain of t values for y(t) ranges from 0
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. (Put your cursor in the box, click and a palette will come up to help you enter your symbolic answer.)
time interval
ave velocity
[0,2]
-0.766
[6,8]
-3.225
time interval
ave velocity
-1.224
-9.798
[2,4]
[8,9]
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Chapter 3 Solutions
EBK USING AND UNDERSTANDING MATHEMATICS
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a. The largest...Ch. 3.A - Percentages. Find three recent news reports that...Ch. 3.A - Percentage Change. Find a recent news report that...Ch. 3.A - Prob. 111ECh. 3.B - Prob. 1QQCh. 3.B - Prob. 2QQCh. 3.B - Prob. 3QQCh. 3.B - 4. You are asked to estimate the total amount of...Ch. 3.B - 5. You are wondering how many dollar bills you’d...Ch. 3.B - 6. You are given some data and asked to calculate...Ch. 3.B - Prob. 7QQCh. 3.B - Prob. 8QQCh. 3.B - Prob. 9QQCh. 3.B - A lottery ticket on which the odds of winning are...Ch. 3.B - Briefly describe scientific notation. How is it...Ch. 3.B - Prob. 2ECh. 3.B - Prob. 3ECh. 3.B - Explain how we can use comparisons to put numbers...Ch. 3.B - 5. Describe three common ways of expressing the...Ch. 3.B - 6. Explain how we can use scaling to put numbers...Ch. 3.B - 7. Suppose that the Sun were the size of a...Ch. 3.B - 8. Describe several ways of putting each of the...Ch. 3.B - Prob. 9ECh. 3.B - I’ve seen about commercials on TV.Ch. 3.B - I live in an apartment building that is 200 feet...Ch. 3.B - In total, Americans spend about a billion dollars...Ch. 3.B - After a recent NFL football game, the star player...Ch. 3.B - The CEO of the company earned more money last year...Ch. 3.B - Prob. 15ECh. 3.B - Prob. 16ECh. 3.B - Prob. 17ECh. 3.B - Review of Scientific Notation. In the following...Ch. 3.B - Prob. 19ECh. 3.B - Prob. 20ECh. 3.B - Prob. 21ECh. 3.B - Prob. 22ECh. 3.B - Using Scientific Notation. Rewrite the following...Ch. 3.B - Prob. 24ECh. 3.B - 23-26: Using Scientific Notation. Rewrite the...Ch. 3.B - Prob. 26ECh. 3.B - Prob. 27ECh. 3.B - Prob. 28ECh. 3.B - 29-32: Perspective Through Estimation. Use...Ch. 3.B - Prob. 30ECh. 3.B - Prob. 31ECh. 3.B - Prob. 32ECh. 3.B - Prob. 33ECh. 3.B - Prob. 34ECh. 3.B - Prob. 35ECh. 3.B - 33-40: Order of Magnitude Estimates. Make order of...Ch. 3.B - Prob. 37ECh. 3.B - Prob. 38ECh. 3.B - Prob. 39ECh. 3.B - Prob. 40ECh. 3.B - Prob. 41ECh. 3.B - 41-48: Energy Comparisons. Use Table 3.1 to answer...Ch. 3.B - 41-48: Energy Comparisons. Use Table 3.1 to answer...Ch. 3.B - 41-48: Energy Comparisons. Use Table 3.1 to answer...Ch. 3.B - Prob. 45ECh. 3.B - Prob. 46ECh. 3.B - Prob. 47ECh. 3.B - Prob. 48ECh. 3.B - Prob. 49ECh. 3.B - Scale Ratios. Find the scale ratios for the...Ch. 3.B - Scale Ratios. Find the scale ratios for the...Ch. 3.B - Prob. 52ECh. 3.B - Scale Model Solar System. The following table...Ch. 3.B - 54. Interstellar Travel. The fastest spaceships...Ch. 3.B - Prob. 55ECh. 3.B - Prob. 56ECh. 3.B - Prob. 57ECh. 3.B - Making Numbers Understandable. Restate the...Ch. 3.B - Prob. 59ECh. 3.B - Making Numbers Understandable. Restate the...Ch. 3.B - Prob. 61ECh. 3.B - Prob. 62ECh. 3.B - Prob. 63ECh. 3.B - Prob. 64ECh. 3.B - Cells in the Human Body. Estimates of the number...Ch. 3.B - Emissions. For every gallon of gasoline burned by...Ch. 3.B - Prob. 67ECh. 3.B - Wood for Energy? A total of about 180,000...Ch. 3.B - Stellar Corpses: White Dwarfs and Neutron Stars. A...Ch. 3.B - Until the Sun Dies. It took 65 million years from...Ch. 3.B - Personal Consumption. The Bureaus of Economic...Ch. 3.B - Sampling Problems. Sampling techniques can be used...Ch. 3.B - Prob. 73ECh. 3.B - 72 – 75 : Sampling Problems. Sampling techniques...Ch. 3.B - Sampling Problems. Sampling techniques can be used...Ch. 3.B - 76. Energy Comparisons. Using data available from...Ch. 3.B - Prob. 77ECh. 3.B - Prob. 78ECh. 3.B - Prob. 79ECh. 3.B - Prob. 80ECh. 3.B - Prob. 81ECh. 3.B - Putting Numbers in Perspective. Find at least two...Ch. 3.B - Prob. 83ECh. 3.C - The $5.6 trillion surplus that government...Ch. 3.C - Under the standard rules for counting significant...Ch. 3.C - Under the standard rules for counting significant...Ch. 3.C - You are trying to measure the outside temperature...Ch. 3.C - You are trying to measure the outside temperature...Ch. 3.C - A testing service makes a error that causes all...Ch. 3.C - A testing service makes an error that causes all...Ch. 3.C - A digital scale shows that you weigh 112.7 pounds,...Ch. 3.C - At a particular moment, the U.S. National Debt...Ch. 3.C - Prob. 10QQCh. 3.C - Prob. 1ECh. 3.C - Prob. 2ECh. 3.C - Prob. 3ECh. 3.C - Distinguish between accuracy and precision. Give...Ch. 3.C - Why can it be misleading to give measurements with...Ch. 3.C - Prob. 6ECh. 3.C - Next year’s federal deficit will be $675.34...Ch. 3.C - In many developing nations, official estimates of...Ch. 3.C - I weigh 110.3627 pounds.Ch. 3.C - The 2013 presidential inauguration brought 925,500...Ch. 3.C - Wilma used a yard stick to measure the length of...Ch. 3.C - More precision is useless if the measurement is...Ch. 3.C - 13. A $1 million error may sound like a lot, but...Ch. 3.C - Prob. 14ECh. 3.C - Prob. 15ECh. 3.C - Review of Rounding. In the following exercises,...Ch. 3.C - Counting Significant Digits. State the number of...Ch. 3.C - Counting Significant Digits. State the number of...Ch. 3.C - Counting Significant Digits. State the number of...Ch. 3.C - Prob. 20ECh. 3.C - 17-28: Counting Significant Digits. State the...Ch. 3.C - Prob. 22ECh. 3.C - Prob. 23ECh. 3.C - Prob. 24ECh. 3.C - Prob. 25ECh. 3.C - Prob. 26ECh. 3.C - Prob. 27ECh. 3.C - 17-28: Counting Significant Digits. State the...Ch. 3.C - Prob. 29ECh. 3.C - Rounding with Significant Digits. Carry out the...Ch. 3.C - Prob. 31ECh. 3.C - Prob. 32ECh. 3.C - Prob. 33ECh. 3.C - Prob. 34ECh. 3.C - Source of Error. Describe possible source of...Ch. 3.C - Prob. 36ECh. 3.C - Source of Error. Describe possible source of...Ch. 3.C - Source of Error. Describe possible source of...Ch. 3.C - Prob. 39ECh. 3.C - 35-42: Source of Error. Describe possible source...Ch. 3.C - Prob. 41ECh. 3.C - Source of Error. Describe possible source of...Ch. 3.C - Tax Audit. A tax auditor reviewing a tax return...Ch. 3.C - AIDS Epidemic. Researchers studying the...Ch. 3.C - Prob. 45ECh. 3.C - Cutting Lumber. A lumber yard employee cuts 30...Ch. 3.C - Prob. 47ECh. 3.C - Absolute and Relative Errors. Find the absolute...Ch. 3.C - Absolute and Relative Errors. Find the absolute...Ch. 3.C - Absolute and Relative Errors. Find the absolute...Ch. 3.C - Prob. 51ECh. 3.C - Prob. 52ECh. 3.C - Prob. 53ECh. 3.C - 47-54: Absolute and Relative Errors. Find the...Ch. 3.C - Prob. 55ECh. 3.C - Accuracy and Precision. For each pair of...Ch. 3.C - Prob. 57ECh. 3.C - Accuracy and Precision. For each pair of...Ch. 3.C - Combining Numbers. Use the appropriate rounding...Ch. 3.C - Combining Numbers. Use the appropriate rounding...Ch. 3.C - Combining Numbers. Use the appropriate rounding...Ch. 3.C - Prob. 62ECh. 3.C - Prob. 63ECh. 3.C - 59-66: Combining Numbers. Use the appropriate...Ch. 3.C - Combining Numbers. Use the appropriate rounding...Ch. 3.C - Prob. 66ECh. 3.C - Prob. 67ECh. 3.C - Prob. 68ECh. 3.C - Prob. 69ECh. 3.C - Prob. 70ECh. 3.C - Prob. 71ECh. 3.C - Prob. 72ECh. 3.C - Prob. 73ECh. 3.C - Prob. 74ECh. 3.C - 75. Propagation of Error. Suppose you want to cut...Ch. 3.C - Prob. 76ECh. 3.C - 77. Random and Systematic Errors. Find a recent...Ch. 3.C - Prob. 78ECh. 3.C - Prob. 79ECh. 3.C - Prob. 80ECh. 3.D - Prob. 1QQCh. 3.D - Prob. 2QQCh. 3.D - Prob. 3QQCh. 3.D - Prob. 4QQCh. 3.D - Prob. 5QQCh. 3.D - Prob. 6QQCh. 3.D - 7. Over the past three decades, the cost of...Ch. 3.D - Suppose your salary has been rising at a greater...Ch. 3.D - Prob. 9QQCh. 3.D - Prob. 10QQCh. 3.D - Prob. 1ECh. 3.D - What is the Consumer Price Index (CPI)? How is it...Ch. 3.D - Prob. 3ECh. 3.D - Prob. 4ECh. 3.D - Prob. 5ECh. 3.D - Even though my salary has remained the same for...Ch. 3.D - Benjamin Franklin said, “A penny saved is a penny...Ch. 3.D - The prices of cars have risen steadily, but when...Ch. 3.D - 9. When we chart today’s price of milk in 1995...Ch. 3.D - 10. The Consumer Price Index is a theoretical...Ch. 3.D - Prob. 11ECh. 3.D - Prob. 12ECh. 3.D - Prob. 13ECh. 3.D - Prob. 14ECh. 3.D - Gasoline Price Index. Use Table 3.2 to answer the...Ch. 3.D - Gasoline Price Index. Use Table 3.2 to answer the...Ch. 3.D - Prob. 17ECh. 3.D - Prob. 18ECh. 3.D - Prob. 19ECh. 3.D - Prob. 20ECh. 3.D - Understanding the CPI. Use Table 3.4 to answer the...Ch. 3.D - Prob. 22ECh. 3.D - Prob. 23ECh. 3.D - 17-26: Understanding the CPI. Use Table 3.4 to...Ch. 3.D - 17-26: Understanding the CPI. Use Table 3.4 to...Ch. 3.D - Understanding the CPI. Use Table 3.4 to answer the...Ch. 3.D - Prob. 27ECh. 3.D - Prob. 28ECh. 3.D - Prob. 29ECh. 3.D - Prob. 30ECh. 3.D - Health Care Spending. Total spending on health...Ch. 3.D - Prob. 32ECh. 3.D - Prob. 33ECh. 3.D - Prob. 34ECh. 3.D - Prob. 35ECh. 3.D - Federal Minimum Wage. Use the following table,...Ch. 3.D - Prob. 37ECh. 3.D - Prob. 38ECh. 3.D - Federal Minimum Wage. Use the following table,...Ch. 3.D - Prob. 40ECh. 3.D - Prob. 41ECh. 3.D - Prob. 42ECh. 3.D - Fan Cost Index. The cost of attending a major...Ch. 3.D - Prob. 44ECh. 3.D - Consumer Price Index. Find a recent news report...Ch. 3.D - Prob. 46ECh. 3.D - Consumer Confidence Index. Use a search engine to...Ch. 3.D - Prob. 48ECh. 3.D - Prob. 49ECh. 3.D - Prob. 50ECh. 3.D - Prob. 51ECh. 3.D - Prob. 52ECh. 3.D - Prob. 53ECh. 3.D - Prob. 54ECh. 3.D - Prob. 55ECh. 3.E - Study Table 3.5. What does the number “8” in the...Ch. 3.E - Study Table 3.5. Which statement is not supported...Ch. 3.E - During their freshman year, Derek’s GPA was 3.4...Ch. 3.E - A false negative in a cancer screening test means...Ch. 3.E - A false positive in a test for steroids means that...Ch. 3.E - Study Table 3.7. The total number of women who did...Ch. 3.E - Study Table 3.7. The total number of women whose...Ch. 3.E - Suppose that a home pregnancy test is 99%...Ch. 3.E - Study the graph in Figure 3.5a. Which of the...Ch. 3.E - Study the graph in Figure 3.5b. Which of the...Ch. 3.E - Prob. 1ECh. 3.E - Prob. 2ECh. 3.E - Prob. 3ECh. 3.E - Prob. 4ECh. 3.E - Despite the fact that the new drug lowered blood...Ch. 3.E - Prob. 6ECh. 3.E - Baggage screening machines are 98% accurate in...Ch. 3.E - The polygraph test showed that the suspect was...Ch. 3.E - The Republications claim the tax cut benefits...Ch. 3.E - The agency suffered a real cut in its annual...Ch. 3.E - Prob. 11ECh. 3.E - Prob. 12ECh. 3.E - Prob. 13ECh. 3.E - Prob. 14ECh. 3.E - Prob. 15ECh. 3.E - Prob. 16ECh. 3.E - Prob. 17ECh. 3.E - Prob. 18ECh. 3.E - Prob. 19ECh. 3.E - Political Math. Government spending for a popular...Ch. 3.E - Basketball Records. Consider the following...Ch. 3.E - 22. Better Drug. Two drugs, A and B, were tested...Ch. 3.E - Prob. 23ECh. 3.E - Airline Arrivals. The following table shows real...Ch. 3.E - Prob. 25ECh. 3.E - Prob. 26ECh. 3.E - Analyzing a Two-Way Table. In the Senate of the...Ch. 3.E - Prob. 28ECh. 3.E - 29. A Tax Cut. According to an analysis of a...Ch. 3.E - Prob. 30ECh. 3.E - Drug Testing. Explore the issue of drug testing...Ch. 3.E - Prob. 32ECh. 3.E - Prob. 33E
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