Find the integral.
A. 
cot 5x + C
B. - 45 cot 5x + C
C. - 
cot 5x + C
D. - 
tan 5x + C
Answer: C
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Find the center of mass of a thin plate covering the given region with the given density function.The region enclosed by the parabolas y = 18 - x2 and y = x2, with density ?(x) = x2
A. 
= 0, 
= 9
B. 
= 0, 
= 
C. 
= 9, 
= 0
D. 
= 0, 
= 18
Solve the problem.A radio transmission tower is 120 feet tall. How long should a guy wire be if it is to be attached 11 feet from the top and is to make an angle of 26° with the ground? Give your answer to the nearest tenth of a foot.
A. 248.6 feet B. 273.7 feet C. 133.5 feet D. 121.3 feet
Write the expression in standard form.3.323 × 10-5
A. 0.000003323 B. -332,300 C. 0.00003323 D. 0.0003323
The graph of a logarithmic function is shown. Select the function which matches the graph.
A. y = -log(-x) B. y = log(-x) C. y = log x D. y = -log x