Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.

A.

B.

C.

D.


Answer: C

Mathematics

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If  represents the library charges on b books that are w weeks overdue, explain in practical terms the meaning of .

What will be an ideal response?

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Find u ? v.u = ,  v = 

A. 41 B. -113 C. -23 D. -43

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Find the product. Assume that all variable factors in the denominator are not equal to zero. ? 

A.
B.  
C.
D.

Mathematics

Find the exact value of the expression.

A. -2
B. - 
C. -
D. - 

Mathematics