Solve the problem.The number of reports of a certain virus has increased exponentially since 1960. The current number of cases can be approximated using the function 
where t is the number of years since 1960. Estimate the of cases in the year 2000.
A. 453 cases
B. 340 cases
C. 440 cases
D. 907 cases
Answer: A
Mathematics
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Choose the graph that matches the function. f(x) = 
x + 4
A. 
B. 
C. 
D. 
Mathematics
The bar graph shows the percentage of adults that use the Internet for specific tasks. Use the graph to represent the given set using the roster method.
the set of tasks in which usage exceeds 20%
A. {e-mail, information searches, news, job} B. {job, school} C. {e-mail, information searches, news} D. {e-mail, information searches}
Mathematics
Provide an appropriate response.Perform the indicated operation, leaving the answer in lowest terms: 
- 
=
A. 
B. 
C. 
D. -
Mathematics
Answer the question about the given function.Given the function f(x) = -4x2 - 8x - 4, list the y-intercept, if there is one, of the graph of f.
A. -16 B. -12 C. -4 D. 0
Mathematics