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. 45
B. 40
C. 41
D. 39
Answer: B
Mathematics
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Solve the problem.Find the moment of inertia of a flywheel with respect to its axis if its inner radius is 
, its outer radius is 
and its mass is 
See figure.
A. 50 kg?cm2 B. 87 kg?cm2 C. 3000 kg?cm2 D. 170 kg?cm2
Mathematics
Suppose a game has this payoff matrix. Find the expected value of the game for the specified strategies of A and B. 
A. 0.88 B. 0 C. -0.60 D. 0.68
Mathematics
Solve the problem.Bob's subtotal at Scramble's Electronics is $17.66. The sales tax on these items is $1.67. What is Bob's total bill?
A. $19.23 B. $19.33 C. $18.23 D. $18.33
Mathematics
Find the square root.
A. 28 B. 98 C. 196 D. 14
Mathematics