Solve the problem.Suppose a cost-benefit model is given by y = 
, where y is the cost for removing x percent of a given pollutant. What percent of pollutant can be removed for $30,000? Round your answer to the nearest tenth of a percent.
A. 502.2%
B. 91.0%
C. 9.1%
D. 111.0%
Answer: B
Mathematics
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Solve the problem.If f(x) = 
and f(15) = -5, what is the value of A?
A. A = -227 B. A = -233 C. A = 233 D. A = 227
Mathematics
Evaluate the given binomial coefficient.
A. 30,240 B. 252 C. 504 D. 126
Mathematics
Solve the exponential equation and approximate the result, correct to three decimal places.5(x - 3) = 10
A. 4.431 B. 5.000 C. -1.569 D. 3.693
Mathematics
Convert to a rectangular equation.r = 2 csc ?
A. y = 2 B. x2 + y2 = 2 C. x = 2 D. y2 = 2
Mathematics