Solve the problem.The population density of a city is given by 
where x and y are in miles, and p is the number of people per square mile, in hundreds. The city limits are as shown in the graph below. Determine the city's population.
A. 53,100 people
B. 27,450 people
C. 29,250 people
D. 26,850 people
Answer: B
Mathematics
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Solve the equation.
- 
= 3
A. {-2} B. {3, 8} C. {2, 38} D. {2}
Mathematics
Use the discriminant to determine whether the equation has two rational solutions, one rational solution, two irrational solutions, or two nonreal complex solutions. Do not actually solve.w2 + 5w + 8 = 0
A. Two rational solutions B. Two irrational solutions C. One rational solution D. Two nonreal complex solutions
Mathematics
Evaluate the expression. 
A. 70
B. 
C. 1680
D. 840
Mathematics
Find all numbers u (if any) so that the given point (u, y) or (x, u) is on the unit circle.
A. ± 
B. ± 
C. None
D. ± 
Mathematics