Refer to the figure and provide an appropriate name for the indicated angles. 
?5
A. Right angle
B. Obtuse angle
C. Acute angle
D. Vertical angle
Answer: A
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Determine the symmetries of the curve.r2 = 4 sin 4?
A. x-axis only B. x-axis, y-axis, origin C. y-axis only D. Origin only
Solve the system to the nearest 0.1 for each variable by using a graphing calculator.x = -2.0y + 3-3y = 4.0x + 2
A. x = -2.8; y = 2.9 B. x = -2.5; y = 2.6 C. x = 2.5; y = -2.6 D. x = -2.6; y = 2.8
The figure below is a regular hexagon ABCDEF with center O. (P, Q, R, S, T, and U are the midpoints of the sides.)
The image of A under a 300° counterclockwise rotation with center O is
A. B. B. F. C. C. D. E. E. none of these
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
(log9 x + log9 y) - 4 log9 (x + 3)
A. log9 
B. log9 
C. log9 
D. log9 