Solve the problem.The logistic growth model 
represents the population of a bacterium in a culture tube after t hours. What was the initial amount of bacteria in the population?
A. 49
B. 50
C. 55
D. 51
Answer: B
Mathematics
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Factor completely.x4 + 2x3y - 3x2y2
A. x2(x - 3y)(x - y) B. x2(x - 3y)(x + y) C. x2(x + 3y)(x - y) D. x(x + 3y)(x - y)
Mathematics
Solve the problem.Audrey Graco plans to conduct book signings in several cities to promote her new novel. She wishes to visit Knoxville, Chattanooga, Chapel Hill, Charlotte, Raleigh, and Richmond. How many different ways can she visit each of these cities and return to her starting point in Wilmington?
A. 720 B. 120 C. 29 D. 30
Mathematics
Use the square root method to solve the equation. x2 - 64 = 0
A. 32 B. 8 C. ±9 D. ±8
Mathematics
Solve the equation.1296x = 6
A. - 
B. -4
C. 4
D. 
Mathematics