Multiply and simplify. Assume that all variables in a radicand represent positive real numbers. ?  

A. xy
B. 3x2y2
C. 3xy2
D. 3xy

Answer: D

Mathematics

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Simplify the absolute value expression.-  

A. -  
B.  
C. 0
D.  

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Fill in the blank with the appropriate symbol, ? or ? .0 ________ {2, 4, 6, ...}

A. ? B. ?

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Solve.Find the sum of the first 661 natural numbers.

A. 436,921 B. 437,582 C. 218,791 D. 218,130

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Mathematics

Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.1.6x + 1.6y - 5.0z = 4.13.4x - 6.7y + 1.3z = -3.54.1x + 3.0y + 5.1z = 11.7

A. (1.6, 1.4, 0.2) B. (3.3, 2.8, 0.3) C. (6.6, 5.6, 0.6) D. (0.8, 0.7, 0.1)

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Mathematics