Find the determinant of the given matrix.

A. -20
B. -116
C. 644
D. 20


Answer: A

Mathematics

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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the . y = 7csc x, y = 0, x = , x = 

A. 147? B. 98? C. 14? D. 49?

Mathematics

Simplify and add or subtract wherever possible.21 - 9

A. 60 
B. 30
C. 12
D. 12 

Mathematics

Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 6  - 6 + 4  + 4

A. 10  - 2
B. 10  - 2
C. 8
D. 10  - 2

Mathematics

Rewrite the rational expressions as equivalent expressions with the LCD. and 

A.  and 
B.  and 
C.  and 
D.  and 

Mathematics