Refer to the figure and provide an appropriate name for the indicated angles. 
?6
A. Obtuse angle
B. Vertical angle
C. Acute angle
D. Right angle
Answer: C
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 
A. Domain: all points in the xy-plane; range: real numbers > 0; level curves: ellipses 
B. Domain: all points in the xy-plane; range: all real numbers; level curves: ellipses 
C. Domain: all points in the xy-plane except (0, 0); range: all real numbers; level curves: ellipses 
D. Domain: all points in the xy-plane except (0, 0); range: real numbers > 0; level curves: ellipses 
Convert to an exponential equation.ln 29 = 3.3673
A. e3.3673 = ln 29 B. e3.3673 = 29 C. e3.3673 = 1 D. e29 = 3.3673
Solve the system of equations by the substitution method.
A. {(-16, 4)} B. {(-15, -4)} C. {(-4, -16)} D. {(-16, -4)}
Solve by completing the square.3x2 - 2x - 4 = 0
A. x = -4, x = 
B. x = 
C. x = 
D. x = 