Solve the problem.The number of reports of a certain virus has increased exponentially since 1960. The number of cases can be approximated using the function 
where t is the number of years since 1960. Estimate the number of cases in the year 2000.
A. 248 cases
B. 263 cases
C. 197 cases
D. 526 cases
Answer: B
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (-?, -3) and (3, ?); concave down on (-3, 3) B. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (-?, -3) and (3, ?); concave up on (-3, 3) C. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (0, ?); concave down on (-?, 0) D. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (0, ?); concave up on (-?, 0)
Set up an integral for the length of the curve.y = 
, - 
? x ? 
A. 
B. 
C. 
D. 
Solve the problem.The average of a data set consisting of 11 numbers is 12. The largest of the numbers is Max = 13. If Min is the smallest of the numbers in the data set, which of the following could be a possible value of Min?
A. 1 B. 0 C. 11 D. 12 E. none of these
Round the number to the place indicated.Round to the nearest tenth: 1.4511
A. 1.4 B. 1.45 C. 1.6 D. 1.5