Divide.8.1 ÷ 0.009
A. 9
B. 900
C. 90
D. 0.9
Answer: B
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Plot the curve of the given polar equation in polar coordinates.r = 2 - 2 cos ?
A. 
B. 
C. 
D. 
Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = sin-1(x2 + y2)
A. Domain: all points in the xy-plane; range: all real numbers; level curves: circles with centers at (0, 0)
B. Domain: all points in the xy-plane satisfying x2 + y2 ? 1; range: real numbers - 
? z ? 
; level curves: circles with centers at (0, 0)
C. Domain: all points in the xy-plane; range: real numbers - 
? z ? 
; level curves: circles with centers at (0, 0)
D. Domain: all points in the xy-plane satisfying x2 + y2 ? 1; range: real numbers - 
? z ? 
; level curves: circles with centers at (0,0) and radii r, 0 < r ? 1
Provide an appropriate response.If a, b, and c are real numbers, is this statement true or false? 
A. True B. False
Find the perimeter. Use 3.14 for ? when needed.
A. 30.84 m B. 27.42 m C. 21.42 m D. 18.42 m