Find the vertical asymptotes of the rational function.f(x) = 
A. x = 
, x = -1
B. x = - 
, x = 1
C. x = - 
, x = 1
D. x = 
, x = -1
Answer: D
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Solve by using the quadratic formula.6x2 = -10x - 3
A. 
B. 
C. 
D. 
A dye is placed into a mixture of acetone and triethylamine solution. Let D(t ) be the concentration of the dye after t seconds. Let’s suppose the acetone causes the dye to degrade with a decay rate of 0.244 per sec, while the triethylamine causes a downtake rate of 3×10?8molars per second.
(a) Draw a one-compartment model for D . (b) Show that D? = ?0.244D ?(3×10?8 ) (c) Solve for D(t ) given the initial condition D (0) = D0.
Solve the system of equations. If there is no solution to the system, give a reason.x -y + 2z = -102x+ z = -3x + 4y +z = 13
A. (4, 0, -3) B. (-3, 0, 4) C. (0, 4, -3) D. (-3, 4, 0)
Perform the operations indicated.(2x2 + 7x - 4) - (-5x2 + 9x + 4) + (-2x2 - 3x - 5)
A. -5x2 - 5x + 13 B. -5x2 + 5x - 13 C. 5x2 + 13x + 5 D. 5x2 - 5x - 13