Given matrix A, find the indicated minor or cofactor.Find the minor M21.A =
A. -9
B. 31
C. -31
D. 9
Answer: B
Mathematics
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Rewrite the following fraction in two equivalent forms.
A. 
, 
B. 
, - 
C. 
, - 
D. 
, - 
Mathematics
Evaluate the double integral over the given region.
R = {(x, y): 8 ? x ? 9, 8 ? y ? 9}
A. ln 
B. 
2
C. 
D. 
2
Mathematics
Multiply. Simplify, if necessary.56 ? 
A. 32
B. 28
C. 
D. 
Mathematics
Provide an appropriate response.If an equation indicates multiplication, you would perform subtraction to isolate the variable.
A. True B. False
Mathematics