If y varies directly as x, find a linear function which relates them.y = 5 when x = 40
A. f(x) = 8x
B. f(x) = 
C. f(x) = 
D. f(x) = x + 35
Answer: C
Mathematics
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A. 2?
B. 2?
C. 4 ln 
D. 2
2
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Give an appropriate answer to the question.A connected graph has 27 vertices and 38 edges. How many edges must be removed to form a spanning tree for the graph?
A. 37 B. 10 C. 11 D. 12
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Test the equation for symmetry with respect to the given axis, line, or pole.r = 6 + 2 sin ?; the line ? = 
A. May or may not be symmetric with respect to the line ? = 
B. Symmetric with respect to the line ? = 
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Find cos(A + B).cos A = - 
and tan B = 
, with A and B in quadrant III.
A. 
B. 
C. 
D. 
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