Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.-30x2 - 25x + 30
A. (-15x + 10)(2x + 3)
B. prime
C. -5(3x + 2)(2x - 3)
D. -5(3x - 2)(2x + 3)
Answer: D
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Describe the given set of points with a single equation or with a pair of equations.The circle in which the plane through the point (-4, 12, 1) perpendicular to the y-axis meets the sphere of radius 15 centered at the origin.
A. x 2 + y2 + z2 = 144 and y = 12 B. x 2 + y2 + z2 = 63 and y = 12 C. x 2 + y2 + z2 = 225 and y = 12 D. x 2 + y2 + z2 = 81 and y = 12
Write fraction as decimal number. Use bar notation for repeating decimals.
A. 0.27
B. 0.2
C. 0.
D. 0.
Find the polar coordinates of the point. Express the angle in degrees and then in radians, using the smallest possible positive angle.(3, 3)
A. (3
, 225°), 
B. (3
, 135°), 
C. (3
, 45°), 
D. (3
, 315°), 
Shade the solution set in the xy-plane.x2 + y2 ? 9
A. 
B. 
C. 
D. 