Perform the operation, if possible.A =  , B =   Find AB.

A.
 
B.

C.

D.

Answer: A

Mathematics

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Write each expression using the LCD as the denominator., 

A. , 
B. , 
C. , 
D. , 

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Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so.3x + y = 1012x + 4y = 40

A. (0, 10) B. (5, -5) C. all points on the line 3x + y = 10; dependent system D. empty set; inconsistent system

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Mathematics

Solve.y = 3 ? 8

A. 22 B. 34 C. 24 D. 240

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Mathematics

Evaluate the expression.

A. 60 B. 30 C. 120 D. 1

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Mathematics