Use a computer algebra system to find the exact volume of the solid obtained by rotating the region bounded by the given curves about the specified line.
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Solve the equation.
(10x - 20) = 
(8x - 4)
A. 1
B. -1
C. -6
D. 
Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = xyi + xj; C is the triangle with vertices at (0, 0), (7, 0), and (0, 4)
A. 
B. 
C. 0
D. - 
The following question refers to a school district with three high schools. The total number of students in the district is 3000. The teachers within the district are apportioned to the high schools based on the schools' respective enrollments. The standard quota for each school is given in the following table.
Which of the following will work as a modified divisor for Jefferson's method?
A. 28.7 B. 29.5 C. 29.9 D. 29.1 E. none of these
Use the discriminant to determine the number and type of solutions of the equation.8x2 = -3x - 4
A. two complex but not real solutions B. two real solutions C. one real solution