Solve the problem.Suppose a cost-benefit model is given by f(x) = 
, where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 30% to the nearest dollar.
A. $1170
B. $1671
C. $428
D. $3900
Answer: B
Mathematics
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Solve the problem.Find the moment of inertia about the x-axis of a thin plane of constant density 
bounded by the coordinate axes and the line 
.
A. 252
B. 294
C. 
D. 343
Mathematics
Solve the quadratic equation using the quadratic formula.x2 - 6x + 34 = 0
A. {-2, 8} B. {3 - 25i, 3 + 25i} C. {3 + 5i} D. {3 - 5i, 3 + 5i}
Mathematics
Find the domain and range of the relation.{(11,3), (8,-4), (5,-5), (4,4), (10,9)}
A. D = {9, 8, -4, 5, -5}; R = {4, 4, 11, 3, 10} B. D = {4, 3, 9, -4, -5}; R = {4, 11, 10, 8, 5} C. D = {4, 11, 10, 8, 5}; R = {4, 3, 9, -4, -5} D. D = {4, 4, 11, 3, 10}; R = {9, 8, -4, 5, -5}
Mathematics
Solve by factoring.x2 + 13x + 36 = 0
A. {4, 9} B. {-36, -1} C. {-4, -9} D. {1, 36}
Mathematics