Solve the system of equations. Let z be the parameter. 4x + y + 2z = -3 7x - 7y - 4z = -10
A. 
B. (-31 - 10z, 19 - 31z, z)
C. 
D. 
Answer: A
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Solve the quadratic equation by completing the square.x2 = 7 - 8x
A. x = -4 ± 
B. x = -1 ± 
C. x = 4 + 
D. x = -4 ± 2
Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.y = 6x, y = 12x, y = 6
A. 18? B. 36? C. 6? D. 12?
Decide whether the statement makes sense. Explain your reasoning.In an election there were four candidates - Karine, Dave, Rajan, and Amy. Karine won fewer votes than Dave or Rajan, yet in a sequential runoff, she won the election.
What will be an ideal response?
Fill in the blank with one of the words or phrases listed below. 
By the 
property of equality, we may multiply or divide both sides of an equation by any nonzero number without changing the solution of the equation.
A. constant B. multiplication C. addition D. distributive