Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Answer: A
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Find the total area of the region between the curve and the x-axis.y = x2(x - 2)2; 0 ? x ? 2
A. 
B. 
C. 
D. 
Assume that the expressions given are denominators of fractions. Find the least common denominator. r2 + 4r + 3, r2 + r
A. r(r + 1)2 B. r(r + 3) C. r(r + 3)(r + 1) D. r(r + 1)
Simplify the expression.(-6)0 + (-8)0
A. -14 B. -2 C. 2 D. 0
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.