Identify the type of curve that each equation represents by evaluating B2 - 4AC. x2 - 2xy + y2 - 6x + y + 20 = 0
A. Ellipse
B. Parabola
C. Hyperbola
Answer: B
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Solve the problem.The perimeter of a rectangle is 16 cm. One side is 4 cm longer than the other side. Find the lengths of the sides.
A. 2, 4 B. 4, 8 C. 2, 6 D. 3, 7
Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.15x3y2 + 16x2y3 + 4xy4
A. x(5xy2 + 2y3)(3x + 2y) B. xy2(5x + 2y)(3x + 2y) C. prime D. y2(5x + 2y)(3x2 + 2xy)
An observer for a radar station is located at the origin of a coordinate system. For the point given, find the bearing of an airplane located at that point. Express the bearing using both methods.(-8, -8)
A. 225°; S 45° E B. 225°; S 45° W C. 315°; N 45° W D. 315°; N 45° E
Find sum of the pair of complex numbers.2 + 6i, -4
A. 4 B. 2 + 10i C. -2 + 6i D. 2 + 2i