Solve the problem.The marriage rate in a certain country in 1990 was 0.99%, and there were about 397,000 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. 2000
B. 2094
C. 2084
D. 2318
Answer: C
Mathematics
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 0 and x = 2 using an upper sum with two rectangles of equal width.
A. 2.5 B. 4.5 C. 1 D. 5
Mathematics
Find the directrices of the ellipse.36x2 + 49y2 = 1764
A. x = ± 
B. y = ± 
C. y = ± 
D. x = ± 
Mathematics
Divide.
A. 141 R5 B. 138 C. 141 R45 D. 138 R6
Mathematics
Use the graph of the function to estimate the x-intercepts.f(x) = -x2 + 4x + 5
A. x = -5, x = 1 B. x = 4, x = 5 C. x = -1, x = 5 D. x = -5, x = -1
Mathematics