Find an for the given geometric sequence.a5 = , r = 

A. an =  ? n-1
B. an =  ? n
C. an = 9 ? n-1
D. an = 9 ? n

Answer: C

Mathematics

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Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 20xz3i + 11yj - 5z4k; D: the solid wedge cut from the first quadrant by the plane  and the elliptic cylinder x2 + 4y2 = 16

A. 44
B. 88
C.
D. 176

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Rewrite the expression with positive exponents and simplify.   ?

A. ?
B.
C.
D.
E.

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Sketch a typical level surface for the function.f(x, y, z) = 

A.

B.

C.

D.

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Solve the problem.A company knows that the unit cost C and the unit revenue R from the production and sale of x units are related by  Find the rate of change of unit revenue when the unit cost is changing by  and the unit revenue is $4000.

A. $238.30/unit B. $334.40/unit C. $280.00/unit D. $430.50/unit

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Mathematics