Solve the equation.log5 (x + 3) - log5 (x - 1) = 3
A. x = - 
B. x = 
C. x = 
D. no solution
Answer: C
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Graph the function.y = 
A. 
B. 
C. 
D. 
Solve the problem.The daily profit from selling a new action figure is given by 
where P = daily profit and N = average number of figures sold per day. Find the daily profit if N = 1660.
A. $28,465.00 B. $30,695.80 C. $29,577.20 D. $23,568.00
Find the derivative of the function.
The proportion P of doctors aware of a new treatment after t months may be modeled by the differential equation dP/dt = k(0.9-P) where k is a constant.
(a) Write the first-order linear differential equation in standard form. (b) Solve for P(t ) given that P(0) = 0 (c) Suppose that for P(6) = 0.5 . Use this to determine k. (d) Find P(18). (e) Find t so that P(t ) = 0.85 . In other words, how many months will it take for 85% of doctors to become aware of this treatment?