Factor by factoring out the negative of the GCF.-5x2 - 10x
A. -x(5x + 10)
B. -5x(x + 2)
C. -5x(x + 10)
D. -5x2(x + 2)
Answer: B
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Solve the system of equations graphically using a graphing calculator. Find all values to the nearest tenth.x2 + 2y2 = 32y = 6 - x
A. x = -1.2, y = 3.6 B. x = -1.2, y = 3.6; x = 5.2, y = 0.4 C. No solution D. x = 5.2, y = 0.4
Provide an appropriate response.How many real solutions are possible for a system of equations whose graphs are an ellipse and a hyperbola (both centered at the origin)?
A. 2 or 4 solutions B. 0, 1, 2, 3, or 4 solutions C. 0, 2, or 4 solutions D. 0, 1, 2, or 3 solutions
Use the simplex method to solve the linear programming problem.Maximizez = 5x1 + 3x2subject to:2x1 + 4x2 ? 13 x1 + 2x2 ? 6withx1 ? 0, x2 ? 0
A. Maximum is 30 when x1 = 6, x2 = 0 B. Maximum is 18 when x1 = 0, x2 = 6 C. Maximum is 32.5 when x1 = 6.5, x2 = 0 D. Maximum is 9 when x1 = 0, x2 = 3
Evaluate.9 - x2 for x = -7
A. 23 B. -5 C. -40 D. 58