Rationalize the denominator and simplify.
?
?
Your answer should be a radical expression.
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: D
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Graph the ellipse and locate the foci.4x2 + 16y2 = 64
A. foci at (2
, 0) and (-2
, 0)
B. foci at (2
, 0) and (-2
, 0)
C. foci at (0, 2
) and (0, -2
)
D. foci at (
, 0) and (-
, 0)
Provide an appropriate response.The shape of a decorative awning over a storefront can be described by the function y = f(x) = 0.06x2 + 0.012x + 8 where y is the height of the edge of the awning (in feet) above the sidewalk and x is the distance (in feet) from the center of the store's doorway. Use a graphing calculator to graph the function.
What will be an ideal response?
Provide an appropriate response.Find 
if 
= 6x
What will be an ideal response?
Solve the problem.Conrad and Dobler are the two top salesmen in an office that sells personal computers and security systems. The tables below show their sales figures for July and August. July Sales ($) August Sales ($) 
Write the matrix which shows the increase (decrease) in sales from July to August.
A. 
B. 
C. 
D. 