Write the augmented matrix for the system.     

A.

B.

C.

D.

Answer: A

Mathematics

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Evaluate the integral.

A. 14,000 B. 21,000 C. 7000 D. 10,500

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Use reduction formulas to evaluate the integral.

A. -  cos4 5x sin 5x -  cos2 5x sin 5x -  cos 5x + C
B. -  sin4 5x cos 5x -  sin2 5x cos 5x -  sin 10x +  + C
C. -  sin4 5x cos 5x -  sin2 5x cos 5x -  cos 5x + C
D. -  sin4 5x cos 5x -  sin2 5x cos 5x -  cos 5x + C

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Find the exact value of the expression.sin ?

A. undefined B. -1 C. 0 D. 1

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Solve the problem.To find the distance AB across a river, a distance BC of 1176 m is laid off on one side of the river. It is found that B = 105.0° and   Find AB. Round to the nearest meter.

A. 352 meters B. 302 meters C. 299 meters D. 349 meters

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Mathematics