Question: Read the Consumer Connection about Universal Product Codes and answer these questions. a. Write a 12 1 matrix that can be multiplied on the left

Read the Consumer Connection about Universal Product Codes and answer these questions.
a. Write a 12 1 matrix that can be multiplied on the left by a UPC to find the sum of each digit in an even position and 3 times each digit in an odd position.
b. Use the matrix from 13a to check the following four UPCs. Which one(s) are valid?

c. For the invalid UPC(s), what should the check digit have been so that it is a valid code?

0 3 6 2 0 0 0 0 4 0 0 5 0 7 6 1 0 7 0 2 2 3 3 6 0 7 4 2 2 0 0 0 2 9 1 8

Step by Step Solution

★★★★★

3.42 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a b The first and last UPCs are valid Multiply the UPCs matrix by the matrix in 13a The first a... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

940-L-A-L-S (3500).docx

120 KBs Word File

Students Have Also Explored These Related Linear Algebra Questions!

A firm that makes three products and has three machines available as resources constructs the following LP problem: Solve this problem by computer and answer these questions: (a) Before the third...

Answer these questions about the rooted tree illustrated. a) Which vertex is the root? b) Which vertices are internal? c) Which vertices are leaves? d) Which vertices are children of j? e) Which...

As the quality-control inspector in Exercise 8.83, you are ready for the second phase of the inspection. Listed are three different samples, each taken from different lots. Review the sample results...

Answer the question of this case in minimum 500 counts.. Case 1-3: Wa Imart stores, Inc. In November of 2013, Doug McMillon had just been named health and beatuty aids, and 29 percent of non-food...

Does Walmart have a competitive advantage? Temporary CA? Sustainable CA? What changes could be made to develop CA and/or create more sustainable CA? Are there resources Walmart or its competitors...

MNG3701/101/3/2016 Tutorial Letter 101/3/2016 Strategic Planning MNG3701 Semesters 1 and 2 Department of Business Management IMPORTANT INFORMATION: Please activate your myUnisa and myLife email...

UNIT 5 QZ, Q-20 UNIT 5 / UNIT 8 QUESTIONS KEEP ANSWERS SEPARATE BY UNITS UNIT II STUDY GUIDE Consumer Mathematics Reading Assignment See information below. Key Terms 1. Add-on interest method 2....

MNG3702/101/3/2016 Tutorial Letter 101/3/2016 Strategy Implementation and Control MNG3702 Semesters 1 and 2 Department of Business Management PLEASE NOTE: This tutorial letter contains important...

1. (1 point) 3. (1 point) (Note: This problem is similar to problem 6 in section 1.1 of your textbook.) (Note: This problem is similar to problems 1-3 in section 1.1 of your text.) Let U = {3, 4, 6,...

2. Find the roots of the following: (10 pts. each) z6 = 2 4i b. z - 2iz - 3i 5 = 0 .

Let X be an Erlang random variable with PDF, Derive a saddle point approximation for the left tail probability, Pr (X le(x

Pine Tree Company's balance sheet showed total current assets of $ 4 , 2 5 0 , all of which were required in operations. Its current liabilities consisted of $ 9 7 5 of accounts payable, $ 6 0 0 of 6...

Consider this hypothesis, which is expressed in symbols: HA: 1 > 2 . Is this a directional or a nondirectional hypothesis?

Find the mean, median, mode, and range for each data set given. a. 7, 12, 1, 7, 6, 5, 11 b. 85, 105, 95, 90, 115 c. 10, 14, 16, 16, 8, 9, 11, 12, 3 d. 10, 8, 7, 5, 9, 10, 7 e. 45, 50, 40, 35, 75 f....

Which of the data sets from Exercise 2 are skewed?

Courtney wants to sell her grandfather's antique 1932 Ford. She begins to set her price by looking at ads and finds these prices: $24,600, $19,000, $33,000, $15,000, and 20,000. What is the mean...

Jiminy's Cricket Farm issued a 30-year, 7.4 percent semiannual bond 7 years ago. The bond currently sells for 89 percent of its face value. The book value of this debt issue is $100 million. In...

In the "Walingo Nutrition" article, Which of the following comparisons using the independent samples t-test were NOT significant? Group of answer choices breakfast protein lunch energy breakfast...

Your car dealer is willing to lease you a new car for $319 a month for 60 months. Payments are due on the first day of each month starting with the day you sign the lease contract. If your cost of...