Given matrix A, find the indicated cofactor.Find A21.A = 

A. -1
B. -3
C. 1
D. 3

Answer: C

Mathematics

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Use the given transformation to evaluate the integral.   Rwhere R is the parallelogram bounded by the lines    

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A.
B. 11,319
C.
D.

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Convert the equation given in rectangular form into polar form.4x - 9y + 14 = 0

A. r = 
B. r = 
C. 4 cos ? - 9 sin ? = 14
D. 4 cos ? - 9 sin ? = -14

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Solve the equation. ? ?

A.
B.
C.
D.
E.

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Solve for y.3y + 7x = 9y - 10

A. y = 
B. y = 
C. y = 
D. y = 

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Mathematics