Find the multiplicative inverse, or reciprocal.- 

A.  
B. 1
C.   
D. -  


Answer: D

Mathematics

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Find the vertices of the ellipse.9x2 - 90x + 25y2 + 100y + 100 = 0

A. (2, -2), (8, -2) B. (0, -2), (10, -2) C. (-2, 0), (-2, 10) D. (1, -2), (9, -2)

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Find the Cartesian product.A = {0}B = {19, 29, 39}Find B × A.

A. {0} B. {(19, 0), (29, 0), (39, 0)} C. {0, 0, 0} D. {(0, 19), (0, 29), (0, 39)}

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Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.2-3

A. 8
B. -8
C.
D.

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Evaluate.8 ? 8 - 8

A. 56 B. 512 C. 0 D. 72

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