At the beginning of 1990, the population of a certain state was 53.2% rural and 46.8% urban. Based on past trends, it is expected that 10% of the population currently residing in the rural areas will move into the urban areas, while 16% of the population currently residing in the urban areas will move into the rural areas in the next decade. What was the population distribution in that state at the beginning of 2000?
a. 56.972% rural and 43.028% urban
b. 55.368% rural and 44.632% urban
c. 44.632% rural and 55.368% urban
d. 43.028% rural and 56.972% urban
b. 55.368% rural and 44.632% urban
Mathematics
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Solve and graph. Write the answer in set-builder notation.
? 3 
A. {b |b ? 12}
B. {b |b > 12}
C. {b |b ? 12}
D. {b |b < 12}
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Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = i - j, w = 2i + 4j
A. 116.6° B. -18.4° C. 18.4° D. 108.4°
Mathematics
Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Mathematics