Solve the problem.The spread of a cold virus can be modeled using logistic equations. The key assumption is that at any given time, a fraction y of the population, where 0 ? y ? 1, has the virus, while the remaining fraction 
does not. Furthermore, the cold virus spreads by interactions between those who have it and those who do not. The number of such interactions is proportional to y(1 - y). Therefore, the equation that describes the spread of the virus is 
where k is a positive real number. Assume
src="https://sciemce.com/media/4/ppg__wesa0610191635__f1q17g3.jpg" alt="" style="vertical-align: -4.0px;" /> and solve the initial value problem where the number of people who initially have the cold virus is 
A. y = 
B. y = 
C. y = 
D. y = 
Answer: B
Mathematics
src="https://sciemce.com/media/4/ppg__wesa0610191635__f1q17g3.jpg" alt="" style="vertical-align: -4.0px;" /> and solve the initial value problem where the number of people who initially have the cold virus is
A. y =
B. y =
C. y =
D. y =
Answer: B
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Solve the problem.Suppose there are 5 roads connecting town A to town B and 3 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
A. 8 ways B. 25 ways C. 9 ways D. 15 ways
Perform the indicated operations. Leave the result in polar form.(
)3
A. 
B. 
C. 
D. 
Provide an appropriate response.Evaluate the exponential expression -10a0, if a ? 0.
A. 0 B. -10 C. -10a D. -1
Convert the equation to the standard form for a hyperbola by completing the square.4y2 - 25x2 + 8y - 50x - 121 = 0
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1