Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.
A. {(0, 11)}
B. {(5, -9)}
C. {(x, y) 
}
D. ?
Answer: C
Mathematics
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Find 35% of 70.
A. 50 B. 24.5 C. 35 D. 200
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Solve the problem.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by 
What is the cost per ton for x = 10?
A. $26,250.00 B. $25,725.00 C. $490.65 D. $50.00
Mathematics
Find the solution set for the inequality.|r + 6| > 7
A. {r|-13 < r < 1} B. {r|-1 < r < 13} C. {r|r < -1 or r > 13} D. {r|r < -13 or r > 1}
Mathematics
Solve the triangle.a = 5, b = 11, c = 9
A. A ? 26.6°, B ? 53.8°, 
B. No triangles possible
C. A ? 26.6°, B ? 99.6°, 
D. A ? 26.6°, B ? 102.6°, 
Mathematics