Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. 4
B. 3
C. 12
D. 
Answer: B
Mathematics
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Find the surface area or volume.Use an integral table and a calculator to find to two decimal places the area of the surface generated by revolving the curve 
about the x-axis.
A. 75.90 B. 65.06 C. 37.95 D. 53.23
Mathematics
Establish the identity.
= cot 
What will be an ideal response?
Mathematics
Identify the expression as a monomial, binomial, trinomial, or none of these.15x
A. Trinomial B. Monomial C. None of these D. Binomial
Mathematics
Use an equation to solve the percent problem.What percent of 150 is 37.5?
A. 25% B. 250% C. 0.25% D. 2.5%
Mathematics