We Have Encoded Messages by Assigning the Letters of the Alphabet

question 20

Multiple Choice

We have encoded messages by assigning the letters of the alphabet the numbers 1-26, with a blank assigned the number 27, and by using an encoding matrix A that converts the numbers to the coded message. To decode any message encoded by A, we must find the inverse of A, denoted by A^-1, and multiply A^-1 times the coded message. Use this code and the given encoding matrix A to find the matrix that can be used to decode the given message. ​
Code matrix is
​ The message is
​
138, 59, 72, 29, 143, 58, 57, 24, 101, 44
​

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Definitions:

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Regular payment made by an employer to an employee, usually monthly or biweekly, for their professional services.