Solve the problem.The population of a particular country was 23 million in 1981; in 1990, it was 27 million. The exponential growth function 
describes the population of this country t years after 1981. Use the fact that 9 years after 1981 the population increased by 4 million to find k to three decimal places.
A. 0.018
B. 0.154
C. 0.028
D. 0.715
Answer: A
Mathematics
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Write in terms of the cofunction of a complementary angle.csc 
A. sec 
B. sin 
C. sin 
D. sec 
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Determine whether the ordered pair is a solution for the given equation.y = 9 - x, (4, 5)
A. Yes B. No
Mathematics
Find an equation for the parabola described.Vertex at (4, 8); focus at (4, 6)
A. (y - 8)2 = -8(x - 4) B. (x - 4)2 = 8(y - 8) C. (x - 4)2 = -8(y - 8) D. (y - 8)2 = 8(x - 4)
Mathematics
Round as indicated.2740 to the nearest hundred
A. 2700 B. 2600 C. 2800 D. 2710
Mathematics