Solve the problem.Suppose an isolated island has a native population of 10,000 and a person from a visiting ship introduces a disease which has an infection rate of 0.00005. Assume that the rate of spread of the disease satisfies the following logistic equation: 
= k
y, where N is the size of the population and y is the number infected at time t.How many individuals remain uninfected after 5 days?
A. 9788
B. 12
C. 9588
D. 9988
Answer: D
Mathematics
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A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
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Solve.-8x + 8 + 6x = -3x + 13
A. x = 5 B. x = -8 C. x = -13 D. x = 13
Mathematics
Solve the problem.The cost of manufacturing clocks is given by c = 25(n + 9)1/2, where c is the cost in dollars and n is the number produced. What is the cost when no clocks are produced?
A. $15 B. $75 C. $25 D. $225
Mathematics
Factor out the greatest common factor.x2 + 9x
A. x2(1 + 9x) B. x(x2 + 9) C. x(x + 9) D. No common factor
Mathematics