Eliminate the parameter to find a description of the circle or circular arc in terms of x and y.x = 2 cos t, y = 2 sin t; -? ? t ? ?
A. x2 + y2 = 2; The curve is a circle with center (0, 0) and radius 2; the curve begins at (-4, 0) and is oriented counterclockwise, ending at (-4, 0).
B. x2 + y2 = 4; The curve is a circle with center (0, 0) and 2 in Quadrants III and IV; the circular arc begins at (-2, 0) and is oriented counterclockwise, ending at (2, 0).
C. x2 + y2 = 4; The curve is a circle with center (0, 0) and radius 2; the curve begins at (-4, 0) and is oriented counterclockwise, ending at (-4, 0).
D. x2 + y2 = 4; The curve is a circle with center (0, 0) and radius 2; the curve begins at (-4, 0) and is oriented clockwise, ending at (-4, 0).
Answer: C
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The following question(s) refer(s) to the capture-recapture method: n1 denotes the size of the tagged (captured) sample, n2 denotes the size of the second (recaptured) sample, and k denotes the number of tagged individuals in the second sample.If n1 = 32, n2 = 50, and k = 8, the N-value of the population is approximately
A. 256. B. 320. C. 30. D. 200. E. none of these
Write as a percent.8.144
A. 8.144% B. 0.08144% C. 814.4% D. 0.8144%
Solve the problem. Round your answer, as needed.Dr. Taylor can see 6 patients in 3 hours. At this rate, how long would it take him to see 48 patients?
A. 23 hours B. 96 hours C. 18 hours D. 24 hours
If 
with B in QII, find
?
What will be an ideal response?