Find the domain of the composite function f?g.f(x) = ,g(x) = 

A. (-?, -8) or (-8, -1) or (-1, 0) or (0, ?)
B. (-?, ?)
C. (-?, -8) or (-8, 0) or (0, ?)
D. (-?, -1) or (-1, 0) or (0, ?)


Answer: D

Mathematics

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Calculate the flux of the field F across the closed plane curve C.F = e4xi + e2yj; the curve C is the closed counterclockwise path around the triangle with vertices at  (4, 0), and (0, 2)

A. 0
B. e16(1 - e-16) + 1(e4 - 1) - 6
C. e16(1 - e-4) + 1(e4 - 1) + 6
D. e16( e-4 - 1) + 1(1 - e4) - 6

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Evaluate the expression for the given values of the variables, if possible.x ? 5 + y ÷ (x - (3 + 2)), for x = 8, y = 15

A. 45 B. 46 C. 44 D. 47

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Simplify the expression. Assume that all variables are positive.

A. t3z2
B.
C.
D. t2z3

Mathematics