Find the root if it is a real number.- 
A. -16
B. 8
C. 4
D. -4
Answer: C
Mathematics
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Set up a definite integral that gives the arc length of the given curve.x = cot t, y = 5t, 0 ? t ? 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the integral by using a substitution prior to integration by parts.
A. x cos (ln x) + sin (ln x)+ C
B. 
[cos (ln x) + sin (ln x)] + C
C. 
[cos (ln x) - sin (ln x)] + C
D. x[cos (ln x) + sin (ln x)] + C
Mathematics
Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 5
+ 6
A. 17
B. 11
C. 7
D. -17
Mathematics
Determine if the sequence is decreasing or nondecreasing and if it is bounded or unbounded from above.an = 
A. Decreasing; unbounded B. Decreasing; bounded C. Nondecreasing; unbounded D. Nondecreasing; bounded
Mathematics