Solve the rational inequality and graph the solution set on a real number line. 
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A. (-?, -8) ? (6, ?)
B. (-8, 6)
C. (-?, -8)
D. (6, ?)
Answer: B
Mathematics
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Find the partial derivative of the dependent variable or function with respect to each of the independent variables.f(x, y) = ln 
A. 
= - 
; 
= 
B. 
= -ln 
; 
= ln 
C. 
= -ln
; 
= ln 
D. 
= 
; 
= 
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Solve the problem.A painter leans a ladder against one wall of a house. At what height does the ladder touch the wall? Round to one decimal place if needed.
A. 100 ft B. 25 ft C. 7.05 ft D. 14.1 ft
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Simplify.
A. 84 B. 13 C. 14 D. Not a real number
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Graph the circle whose radius is r and whose center is (h, k). r = 2; (h, k) = (2, 1)
A. 
B. 
C. 
D. 
Mathematics