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 80% to the nearest dollar.
A. $7100
B. $28,400
C. $4000
D. $5680
Answer: B
Mathematics
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Find the limit of the sequence or determine that the limit does not exist.an = ln 
n
A. 0 B. does not exist C. 4 D. ln 4
Mathematics
Find all the second order partial derivatives of the given function.f(x, y) = x ln (y - x)
A. 
= 
; 
= - 
; 
= 
= 
B. 
= 
; 
= - 
; 
= 
= 
C. 
= 
; 
= - 
; 
= 
= - 
D. 
= 
; 
= 
; 
= 
= 
Mathematics
Find an equation in point-slope form of the line having the specified slope and containing the point indicated.m = 2, (0, -3)
A. y + 3 = 2x B. y = 2(x - 3) C. y = 2(x + 3) D. y - 3 = 2x
Mathematics
Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = 5
A. Even B. Odd C. Neither
Mathematics