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5. For security, a credit card number is coded in the following way, so that it can be sent as a message. Subtract each digit from 9. a. Code the credit card number 3201 2342 3458 0931. b. Acoded credit card number is 2341 0135 7923 0133. What is the original credit card number? c. Find f (z) if x represents a single input digit. What is the domain of f (z)? d. Determine f-" (=) and its domain of f' (z)?

5. For security, a credit card number is coded in the following way, so that it can be sent as a message. Subtract each digit from 9. a. Code the credit card number 3201 2342 3458 0931. b. Acoded credit card number is 2341 0135 7923 0133. What is the original credit card number? c. Find f (z) if x represents a single input digit. What is the domain of f (z)? d. Determine f-" (=) and its domain of f' (z)?

Elements Of Modern Algebra
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.8: Introduction To Cryptography (optional)
Problem 14E
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Important When answering questions in a mathematics course always use the following guidelines to help you do your best • Provide full solutions, showing all of your steps. Make sure that there is one step or idea per line. • Use one equal sign per line. • Make sure that equal signs line up vertically. • Don't use self-developed short form notations. • Make sure all graphs are titled with labeled axes.
Transcribed Image Text:Important When answering questions in a mathematics course always use the following guidelines to help you do your best • Provide full solutions, showing all of your steps. Make sure that there is one step or idea per line. • Use one equal sign per line. • Make sure that equal signs line up vertically. • Don't use self-developed short form notations. • Make sure all graphs are titled with labeled axes.
5. For security, a credit card number is coded in the following way, so that it can be sent as a message. Subtract each digit from 9. a. Code the credit card number 3201 2342 3458 0931. b. A coded credit card number is 2341 0135 7923 0133. What is the original credit card number? c. Find f (z) if x represents a single input digit. What is the domain of ƒ (z)? d. Determine f- (z) and its domain of f-1 (z)?
Transcribed Image Text:5. For security, a credit card number is coded in the following way, so that it can be sent as a message. Subtract each digit from 9. a. Code the credit card number 3201 2342 3458 0931. b. A coded credit card number is 2341 0135 7923 0133. What is the original credit card number? c. Find f (z) if x represents a single input digit. What is the domain of ƒ (z)? d. Determine f- (z) and its domain of f-1 (z)?
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