Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 6 cos t, y = 6 sin t; 0 ? t ? 2?
A. x2 - y2 = 36; -6 ? x ?6
B. x2 + y2 = 36; -6 ? x ?6
C. x2 + y2 = 6; -6 ? x ?6
D. x2 - y2 = 6; -6 ? x ?6
Answer: B
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and the planes 
and 
.
A. 6? B. 12? C. 36? D. 18?
Find an explicit formula for an.1, - 
, 
, - 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Use a proportion to solve the problem.On April 26, 2005, 1 U.S. dollar was worth about 0.52521 British pounds. How much would a car have cost in U.S. dollars that cost 11,890 British pounds?
A. $6159.02 B. $6244.75 C. $22,953.67 D. $22,638.56
Solve the system of equations.
A. x = z + 2 y = 2 - z z = any real number B. x = 2 - z y = z + 2 z = any real number C. inconsistent (no solution) D. x = z + 2 y = z - 2 z = any real number