In the diagram above, line OA is congruent to line OB. What is the measure of arc CD?
A. 27.5 degrees
B. 55 degrees
C. 70 degrees
D. 110 degrees
E. 125 degrees
Given the following figure with one tangent and one secant drawn to the circle, what is the measure of angle ADB?
A. 50 degrees
B. 85 degrees
C. 60 degrees
D. 110 degrees
E. 25 degrees
If the surface area of a cube is 384 cm2, what is the volume of the cube?
A. 64 cm3
B. 256 cm3
C. 512 cm3
D. 1,152 cm3
E. 4,096 cm3
In the diagram above, what is the sum of the measures of the angles x, y, and z?
A. 180 degrees
B. 360 degrees
C. 540 degrees
D. 720 degrees
E. cannot be determined
Greg has nine paintings. The Hickory Museum has enough space to display three of them. From how many different sets of three paintings does Greg have to choose?
A. 27
B. 56
C. 84
D. 168
E. 504
It takes eight people 12 hours to clean an office. How long would it take six people to clean the office?
A. 9 hours
B. 15 hours
C. 16 hours
D. 18 hours
E. 24 hours
The point (2, 1) is the midpoint of a line with endpoints at (?,3) and
A. (–3,4)
B. (–7,2)
C. (7,1)
D. (9,–1)
E. (–10, 3)
Lindsay grows only roses and tulips in her garden. The ratio of roses to tulips in her garden is 5:6. If there are 242 total flowers in her garden, how many of them are tulips?
A. 22
B. 40
C. 110
D. 121
E. 132
The statement "Raphael runs every Sunday" is always true. Which of the following statements is also true?
A. If Raphael does not run, then it is not Sunday.
B. If Raphael runs, then it is Sunday.
C. If it is not Sunday, then Raphael does not run.
D. If it is Sunday, then Raphael does not run.
E. If it is Sunday, it is impossible to determine if Raphael runs.
In the diagram above, lines EF and GH are parallel, and line AB is perpendicular to lines EF and GH. What is the length of line AB?
A. 5
B. 52
C. 53
D. 102
E. 103
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