Solve the equation.x3 + 20 = 5x2 + 4x
A. 5, 2
B. 5, 2, -2
C. -5, 5, 2
D. -5, -2, 2
Answer: B
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Solve the problem.A cylinder with height 10 m and radius 4 m is filled with water and must be emptied through an outlet pipe 2 m above the top of the cylinder. Compute the work required to empty the water in the top half of the tank. Then compute the work required to empty the (equal amount of) water in the lower half of the tank. Round to two decimal places when appropriate.
A. 11,083,538.9 J; 23,398,582.1 J B. 12,315,043.2 J; 12,315,043.2 J C. 34,482,120.9 J; 23,398,582.1 J D. 24,630,086.4 J; 12,315,043.2 J
Find the slope of the line tangent tangent to the graph a the given point. y = 
, x = 6
A. m = 
B. m = - 
C. m = - 
D. m = 
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Solve the problem.Let f(x) = x2 + 4x - 3. Find f(-1).
A. f(-1) = 2 B. f(-1) = -3 C. f(-1) = -6 D. f(-1) = -8