In a school survey, students showed these preferences for instructional materials. Answer the question.
About how many students would you expect to prefer radio in a school of 1000 students?
A. About 360 students
B. About 180 students
C. About 5 students
D. About 50 students
Answer: D
Mathematics
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Evaluate the spherical coordinate integral.
A. 
?
B. 
?
C. 
?2
D. 
?2
Mathematics
Divide.(x3 - 2x2 + 5x - 7) ÷ (x + 4)
A. x2 - 6x + 29 + 
B. x3 - 2x2 + 29x - 123
C. x2 - 6x + 13 + 
D. x2 - 6x + 29 + 
Mathematics
Assume that x, y, and a are positive numbers. Use the properties of logarithms to write the expression 
in terms of the logarithms of x and y.
a. 
b. 
c. 
d. 
e. 
Mathematics
Solve the equation for the specified variable.P = 
for r
A. r = 
B. r = P - tA
C. r = 
D. r = 
Mathematics