Solve the problem.An electronics store determines the following demand function for phones of a particular type 
where q = the number of phones sold per day when the price per phone is x dollars. Find the elasticity.
A. E(x) = 
B. E(x) = 
C. E(x) = 
D. E(x) = 
Answer: D
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Provide an appropriate response.True or False? In Euclidean geometry, a triangle with two acute angles and one obtuse angle is impossible to construct.
A. True B. False
Solve the problem.Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even. C(x) = 14x + 24,000 R(x) = 34x
A. 1201 units B. 445 units C. 1200 units D. 1202 units
Solve the equation.-
= -
A. - 
, 
B. No solution
C. 
D. 
Discuss the equation and graph it.r = 
A. hyperbola; directrix parallel to
the polar axis 
unit above the pole
vertices 
, 
B. ellipse, directrix parallel to
the polar axis 
unit below the pole
vertices 
, 
C. ellipse, directrix perpendicular to
the polar axis 
unit left of the pole
vertices 
, 
D. hyperbola, directrix perpendicular to
the polar axis 
unit right of the pole
vertices 
, 
