Solve.The sum of three numbers is 12. The first, minus the second, plus 4 times the third, is 13. The third, plus 5 times the first, plus the second, is 32. What are the numbers?
A. 5, 5, 4
B. -5, -4, -3
C. 5, 4, 3
D. No solution
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Find the equation of the parabola satisfying the given conditions. The vertex is at the origin.Directrix y = 9
A. y2 = -36x
B. x2 = -36y
C. y = - 
x2
D. y2 = -9x
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Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability.The second marble is blue given the first marble is white.
A. 
B. 
C. 
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Find the vertices of the ellipse.
+ 
= 1
A. (
, 0), (-
, 0)
B. (
, -3), (-
, -3)
C. (6, 0), (-6, 0)
D. (6, -3), (-6, -3)
Mathematics