Rationalize the denominator.
A. 
B. 
C. 
D. 
Answer: B
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Find the coordinates of the vertices and foci of the ellipse.
+ 
= 1
A. V(-25, 0), V(25, 0), F(-20, 0), F(20, 0) B. V(0, -25), V(0, 25), F(0, -15), F(0, 15) C. V(0, -25), V(0, 25), F(0, -20), F(0, 20) D. V(-25, 0), V(25, 0), F(-15, 0), F(15, 0)
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 - 8x + 16 = 0
A. Two different imaginary-number solutions B. Two different real-number solutions C. One real solution
Write an equation in slope-intercept form of the line satisfying the given conditions.Perpendicular to the line y = -4x + 2; containing the point (1, 2).
A. y = - 
x + 
B. y = -4x + 
C. y = 4x + 
D. y = 
x + 
Find an equation of the tangent line to the graph of 
at the point (5, 18) .
What will be an ideal response?