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. Round to the nearest whole number.

A. 329 cases
B. 659 cases
C. 247 cases
D. 310 cases


Answer: A

Mathematics

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Find the center and radius of the circle with the given equation. x2 + y2 = 9

A. Center (0, 0), r = 9 B. Center (3, 3), r = 3 C. Center (3, 3), r = 9 D. Center (0, 0), r = 3

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Simplify the expression involving rational exponents.6251/4

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A. {4} B. {-6} C. {6} D. {-4}

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