53. Education and Income A women's group takes a survey todetermine the education and income of its members. Matrix Asummarizes the proportions of members in various categoriesof years of postsecondary education and income. Matrix Bshows the total number of members in each income category.(a) Calculate the product matrix AB.(b) Interpret the entries of the matrix AB.Income levelLess than$50,000$100,000$50,000to 100,000or moreNone [0.751 to 4 0.25More than 4 L00.100.70 = A0.300.700.20TotalLess than $50,0004$50,000 to 100,000 20$100,000 or more L10

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Answered: 53. Education and Income A women's…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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Exchange Rates The table below gives the exchangerates from U.S. dollars to euros and Japanese yen forthe years 2000 and 2015.a. Assuming the fee for exchanging dollars to theseunits reduces the national currency returned perU.S. dollar by 5%, place the data in a matrix anduse a matrix operation to find the currency unitsactually returned per dollar. b. Which of these two currencies has increased invalue during this period?
50. Matrix Similarity
I Question Details Done The first table shows the number of reams of paper, packs of dry-erase markers, and boxes of staples requested by two teachers. The cost per item is given in the second table. Use matrix multiplication to show the total cost of the supplies for each teacher. 1 21. Use Matrices to solve each problem. Make Sure to Include Correct Units In Your Answers. Teacher Mr. Smith Supply Item Cost Paper Markers Staples Paper $15 6 4 5 Mr. Smith's Costs: Markers $4 Mrs. Wills 8 2 3 Staples $2.50 Mrs. Willis' Costs:
A restaurant has a main location and a traveling food truck. The first matrix A shows the number of managers and associates employed. The second matrix B shows the average annual cost of salary and benefits (in thousands of dollars). Complete parts (a) through (c) below. Restaurant Food Truck Managers Associates 5 29 1 6 (a) Find the matrix product AB. 891 98 183 20 AB= (Simplify your answer.) |=A Salary Benefits Managers 39 8 Associates 24 2 =B (b) Explain what AB represents. Choose the correct answer below. A. Row 1 of AB represents the restaurant and row 2 represents the food truck. Column 1 of AB represents total benefits (in thousands) and column 2 represents total salary (in thousands) for all employees. B. Row 1 of AB represents the restaurant and row 2 represents the food truck. Column 1 of AB represents total salary (in thousands) and column 2 represents total benefits (in thousands) for all employees. C. Row 1 of AB represents the food truck and row 2 represents the…
Negative Image The negative image of a picture interchanges black and white. The number 1 is represented by the matrix A. Determine a matrix B such that B−A represents the negative image of the picture represented by A. Evaluate B−A. A=[030030030]
A restaurant has a main location and a traveling food truck. The first matrix A shows the number of managers and associates employed. The second matrix B shows the average annual cost of salary and benefits (in thousands of dollars). Complete parts (a) through (c) below. Restaurant Food Truck AB= 891 98 183 20 Managers Associates 5 29 1 6 [ (Simplify your answer.) FA Managers Associates Salary Benefits 39 24 8 82 2 = B (b) Explain what AB represents. Choose the correct answer below. O A. Row 1 of AB represents the restaurant and row 2 represents the food truck. Column 1 of AB represents total benefits (in thousands) and column 2 represents total salary (in thousands) for all employees. B. Row 1 of AB represents the restaurant and row 2 represents the food truck. Column 1 of AB represents total salary (in thousands) and column 2 represents total benefits (in thousands) for all employees. O C. Row 1 of AB represents the food truck and row 2 represents the restaurant. Column 1 of AB…
1. Secret Code. A list of numbers can be changed into an image if we know what size matrix to use. What is this list of numbers saying? Rules: (a) use a 4 x 25 matrix. (b) Enter entries in order filing one row at a time (c) entering values from left to right. 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1 What is the secret code? Create a secret code of your own using 1's and 0 on a 4 x 25 matrix. Then display the code on this layout:
The table below shows salaries for full time teachers at a school district based on their education level and experience. Masters $43,979 $46,940 $49,901 Bachelors Experience <5 yrs 5-10 yrs $42,304 $45, 265 $48,226 10+ yrs The District Office wonders whether it makes more financial sense to give a 1% salary increase or a flat $300 salary increase for all employees. Complete the matrix that shows the difference between the percentage and flat rate raises. (Round to the nearest whole number)
Income The table on the top of the next columngives the median weekly earnings for different agesand sexes in 2012. Create a matrix containing thedata, and use a matrix operation to form a matrixthat contains the weekly earnings if the 2012 weeklyearnings are increased by 12% in all categories.Round to the nearest dollar.
Find the elementary row operation that transforms the first matrix into the second, and then find the reverse operation that transforms the second matrix into the first. 4 - 4 1 4 - 4 1 - 8 - 2 - 8 1 - 8 1 8 0 - 2 ... Find the elementary row operation that transforms the first matrix into the second. Choose the correct answer below. O A. Interchange row 2 and row 3. B. Multiply row 3 by Oc. Multiply row 1 by and add the result to row 3. D. Interchange row 1 and row 2. O O

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