Solve the problem.Suppose a cost-benefit model is given by y = 
, where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 60% to the nearest dollar.
A. $4650
B. $1860
C. $3100
D. $1500
Answer: A
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Use the principle of mathematical induction to show that the mathematical statement is true for all natural numbers n.Sn: 1 + 4 + 7 + . . . + (3n - 2) = 
What will be an ideal response?
Solve.An arch in the shape of the upper half of an ellipse is used to support a bridge spanning a creek 36 feet wide. The center of the arch is 9 feet above the center of the creek. Write the equation for the ellipse in which the x-axis coincides with the road and the y-axis passes through the center of the arch.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Find the area of the geometric figure.
A. 1.71 sq m B. 8.7 sq m C. 171 sq m D. 17.1 sq m
Approximate, to three decimal places, the x-value of the point of intersection of the graphs of f(x) and g(x). Round your answer to three decimal places.
?
?
A. 0.572
B. 0.517
C. 0.562
D. 0.567
E. 0.617