Concept explainers
Group Exercise
Putting Numbers into Perspective. A large number can be put into perspective by comparing it with another number For example, we put the $18.9 trillion national debt in perspective (Example 12) by comparing this number to the number or U.S. citizens.
For this project, each group member should consult an almanac, a newspaper, or the Internet to rind a number greater than one million. Explain to other members of the group the context in which the large number is used. Express the number in scientific notation. Then put the number into perspective by comparing it with another number.
Want to see the full answer?
Check out a sample textbook solutionChapter P Solutions
Oxnard College College Algebra Package
Additional Math Textbook Solutions
Graphical Approach To College Algebra
Linear Algebra with Applications (9th Edition) (Featured Titles for Linear Algebra (Introductory))
Introductory Algebra for College Students (7th Edition)
Beginning and Intermediate Algebra
Elementary and Intermediate Algebra
Intermediate Algebra for College Students (7th Edition)
- Pet Owners According to the Humane Society, in 2015, 65% of U.S. households owned at least one pet, and 42% of households who did own pets owned at least two. The U.S. Census Bureau tells us that there were 117 million households in 2015. How many households owned at least two pets? Report your answer in millions rounded to two places.arrow_forwardName the four parts of a mathematical system. HINT: See Section 1.3arrow_forwardNational Debt In mid-2015 the U.S. population was about 321 million. The national debt was well over 18 trillion. In millions of dollars, the debt was 18,151,998. How much did each American owe in mid-2015? Report your answer in thousands of dollars rounded to the nearest whole number.arrow_forward
- In Example 5, after how many days are 250 students infected?arrow_forwardName the four characteristics of a good definition.arrow_forwardCholesterol Cholesterol in human blood is necessary, but too much can lead to health problems. There are three main types of cholesterol: HDL (high-density lipoproteins), LDL (low-density lipoproteins), and VLDL (very low-density lipoproteins). HDL is considered “good” cholesterol; LDL and VLDL are considered “bad” cholesterol. A standard fasting cholesterol blood test measures total cholesterol, HDL cholesterol, and triglycerides. These numbers are used to estimate LDL and VLDL, which are difficult to measure directly. Your doctor recommends that your combined LDL/VLDL cholesterol level be less than 130 milligrams per deciliter, your HDL cholesterol level be at least 60 milligrams per deciliter, and your total cholesterol level be no more than 200 milligrams per deciliter. (a) Write a system of linear inequalities for the recommended cholesterol levels. Let x represent the HDL cholesterol level, and let y represent the combined LDL VLDL cholesterol level. (b) Graph the system of inequalities from part (a). Label any vertices of the solution region. (c) Is the following set of cholesterol levels within the recommendations? Explain. LDL/VLDL: 120 milligrams per deciliter HDL: 90 milligrams per deciliter Total: 210 milligrams per deciliter (d) Give an example of cholesterol levels in which the LDL/VLDL cholesterol level is too high but the HDL cholesterol level is acceptable. (e) Another recommendation is that the ratio of total cholesterol to HDL cholesterol be less than 4 (that is, less than 4 to 1). Identify a point in the solution region from part (b) that meets this recommendation, and explain why it meets the recommendation.arrow_forward
- "If apples cost $1.89 per pound and Carla makes $12.00 per hour, how many hours must Carla work to purchase 334 pounds of apples for a local fair?" 21.2 hours 52.6 hours 59.6 hours 33.4 hours 0.0679 hoursarrow_forwardAsap The statement does make sense/ or notarrow_forwardOnly part B solutions neededarrow_forward
- Question content area top Part 1 A movie theater charges $9.00 for adults and $7.00 for senior citizens. On a day when 316 people paid for admission, the total receipts were $2428. How many who paid were adults? How many were seniors? Question content area bottom Part 1 There were enter your response here adults and enter your response here senior citizens.arrow_forwardSeveral years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 63% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is. (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…arrow_forwardSeveral years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 63% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is. (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALFunctions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage Learning
- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtCollege AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning