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 60% to the nearest dollar.
A. $1500
B. $6450
C. $2580
D. $4300
Answer: B
Mathematics
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Prove the identity.
= 
What will be an ideal response?
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Give the equation of the vertical asymptote(s) of the rational function.g(x) = 
A. x = 0, x = -4 B. x = 4 C. x = 3 D. x = -4
Mathematics
Use basic identities to simplify the expression.
+ csc ? sin ?
A. 1 B. tan2? C. sec2? D. csc2?
Mathematics
Solve.4x2 - 44 = 0
A. -
, 
B. 12
C. 22
D. ±11
Mathematics