Solve the quadratic equation by completing the square.z2 + 14z + 39 = 0
A. -14 + 
B. -7 ± 
C. 7 ± 
D. 7 + 
Answer: B
Mathematics
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For the pair of functions, find the indicated domain.f(x) = 5x + 9, g(x) = 
Find the domain of f + g.
A. (-?, -5) or (-5, ?) B. (-?, -4) or (-4, ?) C. (-?, ?) D. (0, ?)
Mathematics
Graph the parabola.y2 = 5x
A. 
B. 
C. 
D. 
Mathematics
Find f[g(x)] and g[f(x)].f(x) = x2 + 2x + 3; g(x) = x - 4
A. f[g(x)] = x2 - 6x + 11 g[f(x)] = x2 + 2x - 1 B. f[g(x)] = x2 + 2x - 1 g[f(x)] = x2 - 6x + 11 C. f[g(x)] = x2 + 2x - 1 g[f(x)] = x2 + 6x + 11 D. f[g(x)] = x2 + 6x + 11 g[f(x)] = x2 + 2x - 1
Mathematics
Find the midpoint of the segment with the given endpoints.(-9, -4) and (7, 7)
A. (-2, 3)
B. (-16, -11)
C. 
D. 
Mathematics