Solve the problem.The marriage rate in a certain country in 1990 was 0.89%, and there were about 369,000 marriages that year. Use the model M(t) = M0(1 + r)t, with a constant marriage rate and t = 0 corresponding to 1990 to estimate the year in which the number of marriages will be 1 million.
A. 2113
B. 2002
C. 2362
D. 2103
Answer: D
Mathematics
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Solve the problem.The algebraic expression 
describes the duration of a storm, in hours, whose diameter is d miles. Use a calculator to determine the duration of a storm with a diameter of 10 miles. Round to the nearest hundredth.
A. 31.62 hr B. 0.59 hr C. 2.21 hr D. 0.22 hr
Mathematics
Given functions f and g, perform the indicated operations.f(x) = 6x + 5,g(x) = 3x - 2Find fg.
A. 18x2 + 13x - 10 B. 18x2 + 3x - 10 C. 9x2 + 3x + 3 D. 18x2 - 10
Mathematics
Find the centroid of the region bounded by the graphs of the given equations.
Mathematics
Solve the equation by first clearing the decimals.0.05(60) + 0.5x = 0.2(60 + x)
A. {40} B. {20} C. {15} D. {30}
Mathematics