Determine whether the line integral 
is positive, negative or zero.
A. positive
B. negative
C. zero
Answer: A
Mathematics
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Which of the following would not be a valid method of justifying the surface area of a sphere formula? ?
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Name the quadrilateral using every classification that applies.
A. kite B. rhombus, parallelogram C. rectangle, parallelogram D. trapezoid
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Solve the problem.What is the coefficient of x3y4 in the expansion of (x - 2y)7?
A. 35 B. 560 C. -35 D. -560
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Simplify.(4 - 
)2
A. 19 + 8
B. 18 + 
C. 16 + 
D. 19 - 8
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