Find a formula for the inverse of the function described below.A size 12 dress in Country C is size 64 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = 
- 20
B. f-1(x) = x - 20
C. f-1(x) = 
+ 20
D. f-1(x) = 
Answer: A
Mathematics
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Find the value of the expression. Give the result as a decimal.
(-9.5 - 3.8)
A. -39.9 B. -6.967 C. -4.433 D. -51.87
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Find the eigenvalues and the corresponding eigenvectors 
What will be an ideal response?
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Perform the indicated operation.(5a2 - 12b)(-4a2 + 8b + c)
A. -20a4 + 88a2b - 96b4 + 5a2bc B. -20a4 + 88a2b2 - 96b2 C. -20a4 + 88a2b + 5a2c - 96b2 - 12bc D. -20a2 + 88ab + 5a2c - 96b2 - 12c
Mathematics