Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.2x2 = -2x - 5
A. Two different real-number solutions
B. Two different imaginary-number solutions
C. One real solution
Answer: B
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For what values of x does the series converge absolutely?
A. -9 ? x < 3 B. 0 < x < 3 C. 0 < x ? 3 D. -9 < x < 3
Identify the illustrated property as commutative, associative, distributive, or inverse.
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What will be an ideal response?
Find the solution to the system by addition (elimination) method.5x + 7y = 295x + 2y = 44
A. (-3, 10) B. (-10, 7) C. (10, -3) D. (-10, 5)
Solve the problem.A weight attached to a spring is pulled down 9 inches below the equilibrium position. Assuming that the frequency of the system is 
cycles per second, determine a trigonometric model that gives the position of the weight at time t second.
A. y = -9cos 5t B. y = -9cos 10t C. y = 9cos 5t D. y = 9cos 10t