Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.ln 
A. 
ln y + 
B. 
ln 
+ 
C. 7 ln y + 7
D. 
Answer: A
Mathematics
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Plot the parametric surface over the indicated domain.r(u, v) = cos u sin vi + cos v sin uj + sin vk; 0 ? u ? 2?, 0 ? v ? 2?
A. 
B. 
C. 
D. 
Mathematics
Verify the identity.
?
What will be an ideal response?
Mathematics
Solve the problem.Mr. Dresden grosses $500 a week. If his take-home pay is $423.86, how much money was deducted from his gross weekly pay?
A. $77.24 B. $76.24 C. $76.14 D. $77.14
Mathematics
Find the length of the missing side of the right triangle. Round to three decimal places, if necessary.b = 2, c = 
A. a = 4.899 B. a = 19.9 C. a = 5 D. a = 4
Mathematics