Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.whole = 8.9, percent = 45
A. part = 505.6
B. part = 4
C. part = 4.5
D. part = 0.9
Answer: B
Mathematics
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Use implicit differentiation to find dy/dx and d2y/dx2.xy + 3 = y, at the point (4, -1)
A. 
= 
; 
= 
B. 
= - 
; 
= 0
C. 
= 3; 
= - 24
D. 
= 
; 
= - 
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Solve the right triangle.
A = 87°34', a = 8.38
A. B = 3°26', b = 197.2, c = 8.4 B. B = 2°26', b = 0.4, c = 8.4 C. B = 2°26', b = 0.4, c = 197.4 D. B = 87°34', b = 197.2, c = 0.4
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Give the equation of the vertical asymptote(s) of the rational function.g(x) = 
A. x = 
B. x = - 
C. y = - 
D. x = - 
Mathematics
Find the slope of the line.
A. - 
B. 3
C. -3
D. 
Mathematics