Multiply and simplify.
A. 15
B. -15
C. 25
D. -25
Answer: A
Mathematics
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Write the sum in summation notation.2 + 
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Mathematics
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
Mathematics
Solve the system by graphing.x - y = 2x + y = 10
A. {(12, 8)} B. {(4, 6)} C. {(8, 12)} D. {(6, 4)}
Mathematics
Find an equation in point-slope form of the line having the specified slope and containing the point indicated.m = 9, (0, -4)
A. y = 9(x + 4) B. y - 4 = 9x C. y = 9(x - 4) D. y + 4 = 9x
Mathematics