Secret messages can be encoded by using a code and an encoding matrix. If we have the code:
and an encoding matrix E, we can encode a message by taking every two letters of the message, converting them to their corresponding numbers, creating a 2 × 1 matrix, and then multiplying each two numbers by E. The message may be unscrambled with a decoding matrix which is the inverse of the coding matrix, E-1. Determine if the given pair of encoding matrices are inverses of each
other.
and 
What will be an ideal response?
= 
; yes, they are inverses
Mathematics
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Solve the problem.Write the next three "triangular" figurate numbers.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the domain and the range of the functions or relations from the graph.
A. domain: [2]; range: (-?, ?) B. domain: [2]; range: [2] C. domain: (-?, ?); range: [2] D. domain: (-?, ?); range: (-?, ?)
Mathematics
Graph the inequality.y2 - 16 ? -4x2
A. 
B. 
C. 
D. 
Mathematics
Graph.y2 - x2 = 
A. 
B. 
C. 
D. 
Mathematics