Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. x2 + x + 5
B. x2 - 5
C. x2 + 5
D. x + 5
Answer: C
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Solve the problem.If the area of the region at step 1 in the construction of the Koch snowflake is 36, then the area of the seed equilateral triangle in the construction is
A. 36. B. 45. C. 27. D. 9. E. none of these
Simplify the expression.-10 - (-5)
A. -15 B. 15 C. 5 D. -5
Determine whether the system is consistent or inconsistent and whether the equations are dependent or independent.3x + 6y = 729x + 18y = 216
A. Consistent; dependent B. Consistent; independent C. Inconsistent; dependent D. Inconsistent; independent
Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.The population of a town is currently 18,000. This represents an increase of 60% from the population 5 years ago. Find the population of the town 5 years ago. Round to the nearest whole number if necessary.
A. 30,000 B. 10,800 C. 11,250 D. 7200