The numbers of three types of bank accounts on January 1 at the Central Bank and its branches are represented by matrix A.Fixed-depositaccounts1140480460Checking Savingsaccounts[2840accounts1490Main office.A Westside branch 1030540Eastside branch 1170540The number and types of accounts opened during the first quarter are represented by matrix B, and the number and types of accounts closed during the same period arerepresented by matrix C. Thus,120 80 8070 30 4060 20 40(a) Find matrix D, which represents the number of each type of account at the end of the first quarter at each location.B =D =260 120 110140 60 50120 70 50E =and C =000↓ 1(b) Because a new manufacturing plant is opening in the immediate area, it is anticipated that there will be a 10% increase in the number of accounts at each location duringthe second quarter. Write a matrix E= 1.1D to reflect this anticipated increase.→E↓ 14

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Answered: The numbers of three types of bank…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section: Chapter Questions

Problem 22CT

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Question. The number of first-year students who were admitted and accepted for the 2022 fall semester at Pitt was 4927. Of those: 3431 were admitted to the Dietrich School of Arts and Sciences, 661 were admitted to the School of Engineering, 402 were admitted to the College of Business Administration, 253 were admitted to the School of Computing and Information, 180 were admitted to the School of Nursing. Part a ) Given the size of the group of first-year students (here, we can call this the population), can we assume independence if we choose a sample of two students? Possible answer choices: No because N < 10n Yes because N > 10n Part b) If you were to choose two students at random and assume that the sampling is approximately independent, what is the probability that both students are in the College of Business Administration? (report to 3 decimal places as a proportion.)
Select a suitable figure from the four alternatives that would complete the figure matrix. Encircle the letter corresponding to the missing pattern.
4. Philip made 9 bracelets and necklaces from 120 inches of cord. He used 8 inches of cord for each bracelet and 20 inches of cord for each necklace. Use matrices to find the number of bracelets and the number of necklaces that Philip made. 5. At the movies, Devin bought three tickets, one drink, and one bag of popcorn for $43.75. Neil bought one ticket, three drinks, and two bags of popcorn for $27.75. Jung bought two tickets, two drinks, and one bag of popcorn for $34. Make an augmented matrix to represent the situation and use it to find out the prices for one ticket, one drink, and one bag of popcorn.
Amazon.com, Inc. (AMZN) is one of the largest Internet retailers in the world. Best Buy, Inc. (BBY) is a leading retailer of consumer electronics and media products in the United States. Amazon and Best Buy compete in similar markets; however, Best Buy sells through both traditional retail stores and the Internet, while Amazon sells only through the Internet. Sales and accounts receivable information for both companies for a recent period follows (in millions): Amazon Best Buy Sales $135,987 $39,528 Accounts receivable: Beginning of year 5,654 1,280 End of year 8,339 1,162 a. Determine the accounts receivable turnover for each company. Round all calculations to one decimal place. Amazon Best Buy Accounts Receivable Turnover fill in the blank 1 fill in the blank 2 b. Determine the number of days’ sales in receivables for each company. Use 365 days and round all calculations to one decimal place. Amazon Best Buy…
please be guided to the row echelon below
Illustrate an ill condition system with example.
The tables below give the numbers of some species of threatened and endangered wildlife in the United States and in foreign countries in 2015. United States A = Endangered Threatened B = Foreign Fishes Endangered 19 Threatened 3 (a) Write a matrix A that contains the number of each of these species in the United States in 2015 and a matrix B that contains the number of each of these species outside the United States in 2015. (Place endangered species in the first row and threatened species in the second row.) Mammals Reptiles Amphibians Fishes Birds Mammals Birds 74 79 27 21 Mammals Mammals Birds Reptiles 253 69 20 20 Birds (c) Find the matrix B - A. Reptiles Amphibians Fishes 14 20 93 23 15 70 11 214 17 ↓ 1 Reptiles Amphibians (b) Find a matrix with the total number of these species. Assume that U.S. and foreign species are different. 1838: Amphibians 8 1 Fishes What do the negative entries in matrix B-A mean? O There are no endangered/threatened species of this type. O There are less…
Super Sweets of Edmonton, owned and operated by Sophia Blanca, uses a purchases journal (page 15) and a general journal (page 3) to record the following transactions (use separate columns for merchandise and supplies purchases in the purchases journal): 2022 Aug 5 Purchased merchandise on account from Bakker Co., invoice No. 2467, dated August 4, terms 2/10, n/60, $1,637.45. 9 Purchased merchandise on account from Holmes Co., invoice No. 1438, dated August 8, terms 2/10, n/60, $1,784.30. 12 Purchased store supplies on account from Genesis Co., invoice 5031, dated August 12, $1,478.25. 16 Issued debit memo No. 5 to Bakker Co. for merchandise returned, $245.00 from invoice No. 2467. 19 Purchased display equipment on account from Well-Equip Co., invoice No. 42784, dated August 18, $1,754.50. 25 Purchased additional store supplies on account from Genesis Co.,…
Find matrix X: 3. 6 5 4 -2 *X= 18 49 -20 6
What operation will clear the second column in the following matrix?
Sound City sells the TrueSound-XL, a top-of-the-line satellite car radio. Over the last 90 weeks, Sound City has sold no radios in six of the weeks, one radio in 12 of the weeks, two radios in 42 of the weeks, three radios in 22 of the weeks, four radios in 6 of the weeks, and five radios in 2 of the weeks. The following table summarizes this information. Number of Weeks Number of Having the Sales Amount Radios Sold 12 42 22 4 Compute a weighted mean that measures the average number of radios sold per week over the 90 weeks. (Round your answer to 2 decimal places.) unit of measure
The owner of Blackstone Inc. opened 3 stores in different parts of the city and would like to compare the number of sales transactions made after 2 months of operation. The number of sales transactions at the 3 stores are displayed in the chart below: Number of Transactions 250 200 150 100 50 140 180 170 194 SUBMIT QUESTION 2 156 184 Month 1 Month 2 SAVE PROGRESS SUY

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