Solve the system.x2 + 3xy + y2 = 4x2 - 3xy - y2 = 4
A. {(2, 0), (-2, 0)}
B. {(2, 0), (-2, 0), (2, -6), (-2, 6)}
C. {(2, -6), (-2, 6)}
D. {(0, 2), (0, -2), (2, -6), (-2, 6)}
Answer: B
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Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.B = 49°C = 115°b = 49
A. A = 16°, a = 19.9, c = 60.8 B. A = 16°, a = 17.9, c = 58.8 C. A = 14°, a = 60.8, c = 19.9 D. A = 14°, a = 58.8, c = 17.9
Solve the problem.A weight is suspended on a system of spring and oscillates up and down according to P = 0.1[3 cos (8t) - sin (8t)]where P is the position in meters above or below the point of equilibrium (P = 0) and t is time in seconds. Find the time when the weight is at equilibrium. Find all values of t, 0 ? t ? 1, rounded to the nearest 0.01 second.
Fill in the blank(s) with the appropriate word(s).
Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say so.3x + 5y + z = 264x - 5y - z = -53x + y + 5z = 22
A. {(3, 3, 2)} B. {(3, 2, 3)} C. ?; inconsistent system D. {(2, 3, 3)}
Provide an appropriate response.Is the best buy (lowest cost per unit) always the best value? Give an example when this is not true and explain why.
What will be an ideal response?