Provide an appropriate response.The expression 
contains parentheses. Are they necessary? Explain.
What will be an ideal response?
No. Without the parentheses the procedure would be the same. Division is done before addition. 
Mathematics
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Evaluate the improper integral or state that it is divergent.
A. - 
ln 11
B. 
ln 
C. 
ln 6
D. 
ln 11
Mathematics
Determine the indefinite integral.
A. 
+ C
B. tanh3 x sech3 x + C
C. tanh3 x + C
D. - 
+ C
Mathematics
Determine all values that cause the expression to be undefined.
A. - 
B. -18
C. 0
D. 
Mathematics
Write the percent as a simplified fraction or mixed number.4.5%
A. 4
B. 4
C. 
D. 
Mathematics