In the figure below, the region enclosed by the curves y = - 
, y = -x, and y = -x + 3 is shown. Set up an integral or sum of integrals to find the area of the shaded region. (Do not calculate the area.)
A. 
+ 
+ 
B. 
C. 
+ 
D. 
+ 
E. none of these
Answer: A
Mathematics
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Plot the point whose polar coordinates are given.
A. 
B. 
C. 
D. 
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Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.x3 + 4x2 - x - 4 > 0 
A. (-?, - 1) ? (1, 4)
B. (- 4, -1) ? (1, ?)
C. (-?, - 4) ? (-1, 1)
D. (-1, 1) ? (4, ?)
Mathematics
Use a graphing utility to graph the function and then answer the question.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: 
What rainfall produces the maximum number of mosquitoes?
A. 0 in. B. 2 in. C. 4 in. D. 16 in.
Mathematics
Find the product.(3x + 10y)2
A. 3x2 + 60xy + 100y2 B. 9x2 + 60xy + 100y2 C. 3x2 + 100y2 D. 9x2 + 100y2
Mathematics