Find the product.(3xy2 - 5y)(3xy2 + 5y)
A. 9x2y4 + 30xy3 - 25y2
B. 9x2y4 - 30xy3 - 25y2
C. 9x2y4 - 25y2
D. 3x2y4 - 5y2
Answer: C
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Give the appropriate form of the partial fraction decomposition.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
D. 
+ 
Find the vertices and foci of the hyperbola.
- 
= 1
A. Vertices: (-2, 10), (-2, -20); Foci: (-2, -20), (-2, 10) B. Vertices: (15, -2), (-25, -2); Foci: (20, -2), (-30, -2) C. Vertices: (10, -2), (-20, -2); Foci: (-20, -2), (10, -2) D. Vertices: (-2, 15), (-2, -25); Foci: (-2, 20), (-2, -30)
Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -4x2 + 4x
A. maximum; 1 B. minimum; - 1 C. minimum; 1 D. maximum; - 1
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.8w + 7x - 6y - 4z = 117w + 5x - 9y - 4z = -108w - 7x + 7y + 5z = -25-6w - 4x + 7y + 8z = -2
A. (1, 5, 4, 2) B. (-1, 5, 4, -2) C. (-1, 4, -5, 2) D. No solution