Find all real and imaginary solutions.x3 + 2x2 + 9x + 18 = 0
A. {-2, ±3i}
B. {-3i, ±2i}
C. {-3, ±2i}
D. {-2i, ±3i}
Answer: A
Mathematics
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Factor the expression completely. If the polynomial is prime, state this as your answer.x3 - 1000
A. (x + 10)(x2 - 10x + 100) B. (x - 10)(x2 + 10x + 100) C. (x + 1000)(x2 - 1) D. (x - 10)(x2 + 100)
Mathematics
Find the perimeter of the figure.
A. 12x + 2 B. 5x + 2 C. 7x + 2 D. 12x
Mathematics
Complete the square and write the equation in standard form. Then give the center and radius of the circle and graph the equation.x2 + y2 - 6y - 0 = 0
A. (x + 3)2 + y2 = 9
center (-3, 0), r = 3
B. x2 + (y - 3)2 = 9
center (0, 3), r = 3
C. x2 + (y + 3)2 = 9
center (0, -3), r = 3
D. (x - 3)2 + y2 = 9
center (3, 0), r = 3
Mathematics
Solve the system by the substitution method.
A. {(4, -11)}
B. {(x, y) 
C. {(4, 11)}
D. ?
Mathematics