Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: D
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Give the quadrant containing the point. If a point is on an axis, name the axis.(11, -20)
A. QIV B. QII C. QI D. QIII
Selecting from millimeter, meter, dekameter, and kilometer, determine the best unit of measure to express the given length.the length of a room
A. dekameter B. meter C. kilometer D. millimeter
Suppose that the demand function for an appliance is 
where q is the number of units and p is in dollars. What is the consumer's surplus if the equilibrium price is $17.6 and the equilibrium quantity is 21? Round your answer to the nearest dollar.
?
A. $473 B. $475 C. $811 D. $848 E. $474
Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.
and 
A. 
? 0.373
B. 
? 0.656
C. 
? 0.636
D. 
? 7.655