Question: Math 123 Homework 7 Problems 1. For the following graphs, use Kruskal's Algorithm to find minimum cost spanning trees. A B 13 (a) .$5.9 $4.4

Math 123 Homework 7 Problems 1. For the following graphs, use Kruskal's Algorithm to find minimum cost spanning trees. A B 13 (a) .$5.9 $4.4 E B -$4.0 $6.0 $5.1 $4.7 $5.8 C D (b) 2. Encode the message "The Mongoose Calls at Midnight" using the follow- ing encryption methods. (a) A shift cipher with a shift of 5. (b) A transcription cipher using four columns (c) a transcription cipher with the codeword COD. (d) The following substitution cipher: A B CDEF GH I J K L M F 7 UKLN1 I 8 D 3 S B N O P Q R S T U V W X Y Z Q R T Y 4 G V X + O

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