Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.2x - 3y + 5z = 7-5x - 2y + 3z = -37x + 3y - 2z = -10
A. 
B. 
C. 
D. No solution
Answer: B
Mathematics
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Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
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Solve the problem.What is the cost, in dollars, of 17.4 gallons of gasoline at 150.2 cents per gallon? Round your answer to the nearest cent.
A. $26.13 B. $261.35 C. $27.13 D. $262.35
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Graph the function.f(x) = 
- 1
A. 
B. 
C. 
D. 
Mathematics