Solve the problem.The logistic differential equation 
= 0.09P(800 - P)describes the growth of a population P, where t is measured in years. Find the carrying capacity of the population.
A. 800
B. 7.2
C. 400
D. 1600
Answer: A
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Solve the problem.Refer to the figure, which shows the geographical distribution of voters in a state with 64 voters and eight districts. The voters are half Democrat and half Republican. Assume that district boundaries must follow the grid lines shown in the figure and that each district must be contiguous.
Draw boundaries expected to result in the election of four Democratic and four Republican representatives.
What will be an ideal response?
Solve the formula for the specified letter.A = P(1 + nr) for r
A. r = 
B. r = 
C. r = 
D. r = 
Divide. Write the answer in lowest terms and as a whole or mixed number where possible.21 ÷ 
A. 12
B. 
C. 7
D. 35
Set up a system of equations, and use it to balance the chemical equation for the given reaction.C2H2 and O2 react to produce CO2 and H2O.
A. 4C2H2 + 5O2? 6CO2 + 2H2O B. 2C2H2 + 5O2? 4CO2 + 2H2O C. 4C2H2 + 3O2? 2CO2 + 6H2O D. 2C2H2 + 3O2? 4CO2 + 3H2O