Write the given statement as an equation.The surface area of a sphere S varies directly as the square of its radius r.
A. S = kr2
B. S = k2r
C. S = 
D. S = 
Answer: A
Mathematics
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Find the indicated partial derivative.
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Mathematics
Graph the equation by using the slope and y-intercept.y = 4x - 4
A. 
B. 
C. 
D. 
Mathematics
Find the midpoint of the segment with the given endpoints.(4, 4) and (-4, 7)
A. 
B. 
C. (0, 11)
D. (8, -3)
Mathematics
Find the oblique asymptote, if any, of the rational function.f(x) = 
A. None B. y = 6x C. y = x + 6 D. y = 6x - 9
Mathematics