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.x2 + 5x + 4 = 0
A. Two different imaginary-number solutions
B. Two different real-number solutions
C. One real solution
Answer: B
Mathematics
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For the pair of functions, find the indicated domain.f(x) = x2 - 1, g(x) = 2x + 3Find the domain of f - g.
A. (-1, 1) B. [1, ?) C. [0, ?) D. (-?, ?)
Mathematics
Identify the equation as a parabola, circle, ellipse, or hyperbola.4x = 4y2 - 29
A. Circle B. Ellipse C. Hyperbola D. Parabola
Mathematics
Write the vector v in the form v1i + v2j, given 
and the direction angle ? of v.
= 15, ? = 150°
A. 
i + 
j
B. - 
i + 
j
C. - 
i + 
j
D. 
i - 
j
Mathematics
Draw a directed graph with the following adjacency matrix:
Mathematics