Simplify the rational expression. If the rational expression cannot be simplified, so state. 
A. cannot be simplified
B. -1
C. - 
D. 1
Answer: B
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Find the area of the specified region.Inside the graph of r = 8 + cos 3?
A. 
+ 
B. 129? + 
C. 129?
D. 
Solve the equation.-8 = a3
A. 2 B. -64 C. 8 D. -2
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 
/> matrix, and then multiplying each two numbers by E. Use the code and encoding scheme above and an additional encoding matrix, F = 
, to answer the question.If the letters to be encoded are L = 
, show that E(FL) = (EF)L.
What will be an ideal response?
Provide an appropriate response.Explain how the graph of y = (1/3)x + 1 can be obtained from the graph of y = 3x.
What will be an ideal response?