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Investment Portfolio: In Exercise 57 and 58, you invest in AAA-rated bonds, A-rated bonds, and B-rated bonds. The average yields are
Use the inverse of the coefficient matrix of this system to find the amount invested in each type of bond for the given total investment and annual return.
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Chapter 7 Solutions
College Algebra Real Mathematics Real People Edition 7
- When the federal government incurs additional debt to acquire an asset, under current budgeting procedures the deficit while under capital budgeting procedures the deficit does not change, increases does not change, decreases increases, does not change decreases, does not changearrow_forwardThis.arrow_forwardIn the rise of online shopping, malls are losing storefronts. The local mall started with 86 stores at the time that it was opened, but has consistently lost 6 stores per year for each year the mall has been open. Which of the following models represents the number of stores in the local mall at any given year, x?arrow_forward
- f there is no seasonal effect on people getting sick, we would expect equal numbers of people getting sick in each season (winter, spring, summer and fall). A student takes a census of students who took Marketing Research in 2019 and finds that of the 280 students who took Marketing Research in 2019, 75 were sick in winter, 65 were sick in spring, 68 were sick in summer and 72 were sick in fall. She wonders if the excess in the winter is an indication that sickness rates are not uniform throughout the year. What is an appropriate H1? a. The number of people getting sick is not equally distributed across the four seasons. b. The observed values equal the observed values. c. The number of people getting sick is equally distributed across the four seasons. d. The expected values equal the expected values.arrow_forwardNational Debt The size of the total debt owed by the UnitedStates federal government continues to grow. In fact,according to the Department of the Treasury, the debt perperson living in the United States is approximately $53,000(or over $140,000 per U.S. household). The following datarepresent the U.S. debt for the years 2001–2014. Since thedebt D depends on the year y, and each input correspondsto exactly one output, the debt is a function of the year. SoD1y2 represents the debt for each year y. Source: www.treasurydirect.govDebt (billions Debt (billionsYear of dollars) Year of dollars)2001 5807 2008 10,0252002 6228 2009 11,9102003 6783 2010 13,5622004 7379 2011 14,7902005 7933 2012 16,0662006 8507 2013 16,7382007 9008 2014 17,824 (a) Plot the points 12001, 58072, 12002, 62282, and so on ina Cartesian plane.(b) Draw a line segment from the point 12001, 58072 to12006, 85072. What does the slope of this line segmentrepresent?(c) Find the average rate of change of the debt from 2002…arrow_forwardassess2/?cid%3D78918&aid%3D5632695#/skip/11 a Project-A.. The table below sows the number of hate crimes for 2007 to 2018. The value for 2007 is slightly different than the actual value so that each student gets their own unique problem. Number of hate Year crimes 2007 7612 2008 7783 2009 6604 2010 6628 2011 6222 2012 5796 2013 5928 2014 5479 2015 5850 2016 6121 2017 7175 2018 7120arrow_forward
- Economists theorize that the recent recession has affected men more than women because men are typically employed in industries that have been hit hardest by the recession. Women, on the other hand, are typically employed in services which are considered more recession resistant. A sample of 165 men and a sample of 140 women were drawn. In those samples, 20 men were unemployed, and 13 of the women were unemployed. Complete parts a and b below. Economists theorize that the recent recession has affected men more than women because men are typically employed in industries that have been hit hardest by the recession. Women, on the other hand, are typically employed in services which are considered more recession resistant. A sample of 180men and a sample of, 160 women were drawn. In those samples,19 men were unemployed, and 10 of the women were unemployed. Complete parts a and b below. a. What is the test statistic? What is/are the critical value(s)? b. Determine the p-value and…arrow_forwardIn a retail store the stock turnover rate of an item is the number of times that the average inventory of the item needs to be replaced as a result of sales in a given time period. It is an important measure of sales demand and merchandising efficiency. Suppose a retail clothing store maintains an average inventory of 50 shirts of a particular brand. (a) Suppose that the clothing store sells 300 shirts of that brand each year. How many orders of 50 shirts will be needed to replace the items sold? orders(b) What is the annual stock turnover rate for that brand of shirt if the store sells 300 shirts each year? times/yr(c) What would be the annual stock turnover rate if 600 shirts were sold? times/yr(d) Write a formula expressing the annual stock turnover rate as a function of the number of shirts sold. (Let T be the annual stock turnover rate and S the number of shirts sold in a year.)T =arrow_forwardLet u = {1, 0, 2}, v = {0, 1, 3} and w = {1,0, 1} , then %3D None of these -3 -1 3.arrow_forward
- A Classes f (12) Facebook Meet - zmm-tpxq-xar | FINAL EXAMINATION IN AE X E Final Examination in Abstra X E Class Attendance- July 12, X b My Questions | bartleby + docs.google.com/forms/d/e/1FAlpQLScswTGxzv-SBGw6ro4K2N45eNYbSjDcSml4JPpH0abUOsMuWA/formResponse O * O > O Suppose the Cayley table for B the binary operation * is given by {e, a, b, c}unde e а b. e e a b. C a а e e а а e What is the generator of group B? b no generator, since it is not cyclic a 7:24 AM P Type here to search 7/12/2021 O Aarrow_forward11arrow_forwardRoll a pair of 6-sided dice (one blue dice and one red dice) repeatedly, until the sum of the two dice is 7 or larger. Let X denote the value of the blue die on the final roll, and let Y denote the value of the red die on the final roll. PY|x|(3|4) =?arrow_forward
- Linear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage LearningAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
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