Perform the indicated operation. Simplify your answers. 

A. 20
B. 18
C. 19
D. 19


Answer: D

Mathematics

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Solve using Gauss-Jordan elimination.  6x + 4y = 0  4x + 2y = -2

A. (3, -2) B. (-2, -3) C. (-2, 3) D. No solution

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Add or subtract as indicated. - 

A.
B.
C.
D.

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Solve.Find the area of a rectangle whose length is 8 meters and width is 4 meters.

A. 320 sq m
B. 3200 sq m
C. 32 sq m
D. 320 sq m

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Find the expected value of the probability density function to the nearest hundredth.f(x) = 4x-5; [1, ?)

A. 0.80 B. 1.00 C. 1.67 D. 1.33

Mathematics