Simplify.
A. 1
B. - 
C. 0
D. 
Answer: D
Mathematics
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Solve the problem.In one country, it is estimated that in the year 2050, 2% of the population will be over 70. If the population of this country in 2050 is 289 million, how many people will be over 70?
A. 2.89 million B. 8.67 million C. 5.78 million D. 57.80 million
Mathematics
Solve the inequality. Graph the solution set and write it in interval notation.
< 3
A. (-?, -6)
B. (-6, ?)
C. [-6, ?)
D. (-?, -6]
Mathematics
Convert the given polar coordinates of the point to rectangular coordinates.
A. 
B. 
C. 
D. 
Mathematics
Solve.A box is in the shape of a rectangular solid and has a surface area of 126 ft2. If the box is 3 ft wide and 6 ft high, what is the length of the box? (SA = 2LW +2LH + 2WH)
A. 10 ft B. 6 ft C. 9 ft D. 5 ft
Mathematics