Divide. 
A. 
B. 
C. 
D. 
Answer: A
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Solve the given differential equation. (The form of yp is given.)D2y - 2Dy + y = x2 + 2x + sin 2x(Let yp = Ax2 + Bx + C + E sin 2x + F cos 2x.)
A. y = c1ex + c2xex + 6x2 + 6x + 10 sin 2x + 
cos 2x
B. y = c1ex + c2xex + 6x2 + 6x + 10 + 
sin 2x + 
cos 2x
C. y = c1ex + 6x2 + 6x + 10 - 
sin 2x + 
cos 2x
D. y = c1ex + c2xex + 6x2 + 6x + 10 - 
cos 2x + 
sin 2x
Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 24? B. 48? C. 168? D. 18?
Factor. Check by multiplying.
x - 
y + 
A. 
(x - 11y + 7)
B. 
C. 8(x - 11y + 7)
D. 
(x + 11y - 7)
Solve.On an architect's blueprint, 1 inch corresponds to 2 feet. Find the length of a wall represented by a line 
inches long on the blueprint. Round to the nearest tenth if necessary.
A. 10 ft B. 75 ft C. 3 ft D. 13.3 ft