Express the integrand as a sum of partial fractions and evaluate the integral.
A. -16 ln 
+ 10ln
+ 6ln
+ C
B. - 
+ 10ln
+ 6ln
+ C
C. -16 ln 
+ 10ln
+ C
D. -6 ln 
+ 10ln
- 6ln
+ C
Answer: A
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Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of hydrogen sulfide dissolved in a solution, measured in parts per million (ppm), is related to the elapsed time measured from the beginning of the step. Use the following table as a representation of this relationship. Write the data from the table as ordered pairs (x, y), where x represents the time and y represents the amount dissolved.
A. (1, 22.0), (2, 24.4), (3, 26.4), (4, 28.4), (5, 30.2) B. (4, 22.0), (8, 24.4), (12, 26.4), (16, 28.4), (20, 30.2) C. (0, 22.0), (4, 24.4), (8, 26.4), (12, 28.4), (16, 30.2) D. (22.0, 4), (24.4, 8), (26.4, 12), (28.4, 16), (30.2, 20)
Solve the problem.In 1838, the German mathematician and astronomer Friedrich Wilhelm Bessel was the first person to calculate the distance to a star other than the Sun. He accomplished this by first determining the parallax of the star, 61 Cygni, at 0.314 arc seconds (Parallax is the change in position of the star measured against background stars as Earth orbits the Sun. See illustration.) If the distance from Earth to the Sun is about 150,000,000 km and ? = 0.314 seconds = 
minutes = 
degreesdetermine the distance d from Earth to 61 Cygni using Bessel's
figures. 
What will be an ideal response?
Determine whether the ordered pair satisfies the equation.x - y = 9; (3, 5)
A. Yes B. No
Solve the problem.Find k if x = 
is a solution of the equation kx2 + x + 4 = 0.
A. k = 
B. k = 
C. k = 
D. k = 