Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.4.2x2 - 0.6x = -1.2
A. 0.071 ± 0.53
B. 0.071 ± 2.357i
C. 0.143 ± 2.171i
D. 0.071 ± 0.53i
Answer: D
Mathematics
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Find two paths of approach from which one can conclude that the function has no limit as (x, y) approaches (0, 0).f(x, y) = 
What will be an ideal response?
Mathematics
Determine the vertex, focus, and directrix of the parabola and sketch its graph.(x - 1)2 = 8(y + 3)
A. vertex: (1, -3)
focus: (1, -5)
directrix: y = -1
B. vertex: (-3, 1)
focus: (-3, 3)
directrix: y = -1
C. vertex: (1, -3)
focus: (1, -1)
directrix: y = -5
D. vertex: (-1, 3)
focus: (-1, 5)
directrix: y = 1
Mathematics
Write the following as an algebraic expression in u, u > 0.sin 
A. 
B. u
C. 
D. 
Mathematics
Convert to a logarithmic equation.81/3 = 2
A. 
= log28
B. 2 = log1/38
C. 2 = log8
D. 
= log82
Mathematics