Find the domain and the vertical asymptote of the function.f(x) = ln (7 - x)
A. Domain: (-?, 7); vertical asymptote: x = 7
B. Domain: (-7, ?); vertical asymptote: x = -7
C. Domain: (-?, -7); vertical asymptote: x = -7
D. Domain: (7, ?); vertical asymptote: x = 7
Answer: A
Mathematics
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Express the integrand as a sum of partial fractions and evaluate the integral.
A. 3 ln 
+ tan-1 
+ C
B. 3 ln 
+ 
tan-1 
+ C
C. ln 
+ 
tan-1 
+ C
D. 3 ln 
+ 
tan-1 
+ C
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Find the exact value by using a half-angle identity.sin 
A. 
B. 
C. 
D. 
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Solve.(x - 3)(x + 6) = 0
A. {-3, 6} B. {3, 6} C. {3, -3, 6, -6} D. {3, -6}
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Solve. Suppose that the area of a rectangular room is 
square feet. If the length of the room is 4x, determine the width of the room in terms of x.
A. 20x B. 4x + 20 C. x + 20 D. x + 5
Mathematics