Identify the type of graph.
+ 
= 1
A. The graph is a circle with center at (7, 7) .
B. The graph is a circle with center at (0, 0) .
C. The graph is an ellipse with foci on the x-axis .
D. The graph is a circle with center at (49, 49) .
Answer: B
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Solve the system of equations by determinants. 2x - 2y = 2 2x + 3y = 37
A. x = -8, y = -7 B. x = 8, y = 7 C. x = -7, y = 8 D. x = 7, y = 8
Use the two steps for solving a linear programming problem to solve the problem.A breed of cattle needs at least 10 protein and 8 fat units per day. Feed type I provides 6 protein and 2 fat units at $4 per bag. Feed type II provides 2 protein and 3 fat units at $3 per bag. What mixture of Feed type I and Feed type II will fill the dietary needs at minimum cost? Let x represent the number of bags of Feed type I and y represent the number of bags of Feed type II.
A. 4 bags Feed type I and 0 bags Feed type II B. 1 bag Feed type I and 2 bags Feed type II C. 0 bags Feed type I and 5 bags Feed type II D. 1 bag Feed type I and 1 bag Feed type II
Provide an appropriate response.Find a quadratic equation having the given solutions.x = - 
or x = 
A. 21x2 + 1x - 10 = 0 B. 7x2 + 3x - 10 = 0 C. 7x2 - 3x + 10 = 0 D. 21x2 - 1x - 10 = 0
Write a fourth-degree polynomial equation with real coefficients and the roots 1, 3, i. ?
A. 
B. 
C. 
D. 
E. none of these