Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x - 2y + 3z = 114x + y - z = 42x - y + 3z = 10
A. (2, 3, 5)
B. (-2, -3, 3)
C. (2, -3, 1)
D. No solution
Answer: C
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Solve the problem. Round to the nearest hundredth if necessary.Three people build a rectangular shed 8 ft wide, 6 ft long, and 7 ft high. How many ft3 does the shed contain?
A. 2688 ft3 B. 336 ft3 C. 146 ft3 D. 21 ft3
Solve the problem.Find the area of a floor space with the dimensions depicted in the figure to the nearest square foot.
A. 1446 ft2 B. 4907 ft2 C. 77,790 ft2 D. 107,949 ft2
Use the appropriate sum or difference identity to write the given expression as a function of x alone.sin 
A. -sin x B. -cos x C. sin x D. cos x
Solve. Write the solution set using set-builder notation and using interval notation. Graph the solution set. 6x - 2 > 2(2x - 4)
A. {x
x > -3}; (-3, ?)
B. {x
x ? -3}; [-3, ?)
C. {x
x ? -3}; (-?, -3]
D. {x
x < -3}; (-?, -3)