Solve the problem.Find the average distance from a point 
in the first two quadrants of the disk 
to the origin.
A. 
B. 1
C. 
D. 
Answer: D
Mathematics
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Identify which of these types of sampling is used: simple random, stratified, systematic, or convenience.A pollster uses a computer to generate 500 random numbers, then interviews the voters corresponding to those numbers.
A. Systematic B. Stratified C. Convenience D. Simple random
Mathematics
Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 30?
B. 
?
C. 
?
D. 
?
Mathematics
Determine whether the points A, B, and C form a right triangle.A = (-8, 0); B = (-6, 4); C = (-4, 3)
A. Yes B. No
Mathematics
Perform the indicated operations and simplify.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics