Solve the problem.In a town whose population is 3000, a disease creates an epidemic. The number of people, N, infected t days after the disease has begun is given by the functionN(t) = 
. Find the number of infected people after 10 days.
A. 2000 people.
B. 1000 people
C. 2737 people
D. 142 people
Answer: C
Mathematics
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Decide whether the relation is a function.{(-3, 2), (-1, -3), (3, -1), (7, -6)}
A. function B. not a function
Mathematics
Find the union or intersection as indicated.Find A ? B if A = {x|x ? -4} and B = {x|x < 7}
A. {x|-4 ? x < 7} B. {x|x ? -4} C. ? D. {x|x < 7}
Mathematics
The graph of an exponential function is given. Select the function for the graph from the functions listed.
A. f(x) = - 4x B. f(x) = 4x C. f(x) = 4-x D. f(x) = - 4-x
Mathematics
Provide an appropriate response.A man 6 ft tall walks at a rate of 5 ft/sec away from a lamppost that is 13 ft high. At what rate is the length of his shadow changing when he is 65 ft away from the lamppost?
A. 
ft/sec
B. 
ft/sec
C. 
ft/sec
D. 
ft/sec
Mathematics