Solve.3
= 9
A. 11
B. 34
C. 7
D. empty set solution
Answer: C
Mathematics
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Describe the given set of points with a single equation or with a pair of equations.The circle of radius 1 centered at the point (2, -2, 9) and lying in a plane perpendicular to the 
A. (y + 2)2 + (z - 9)2 = 1 and y + z = 7
B. (y + 2)2 + (z - 9)2 = 1 and x = 2
C. 
2+ 
2+ 1 = 1
D. 
2 + 
2 = 1 and x = 2
Mathematics
Solve for the variable.
x - 
= -5
A. x = -21 B. x = 19 C. x = 21 D. x = -19
Mathematics
Find all solutions.x3 + 2x2 - x - 2 = 0
A. {1, -2, 2} B. {-1, 1, -2} C. {4} D. {-2, 2}
Mathematics
Solve the problem.How many liters of a 10% alcohol solution must be mixed with 40 liters of a 50% solution to get a 20% solution?
A. 16 liters B. 12 liters C. 160 liters D. 120 liters
Mathematics