Solve the problem.Suppose that R ={(x, y): 0 ? x ? 4, 0 ? y ? 4}, and P is the partition of R into four equal squares by the lines x =2 and y = 2.   approximate by calculatiang the Riemann sum , assuming that  are the centers of the four squares.

A. 96
B. 48
C. 384
D. 192


Answer: D

Mathematics

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The triangle is not formed by which of the following??

A. ?Half of a rectangle. B. ?Half of a parallelogram. C. ?Half of a quadrilateral. D. ?Half of a another triangle. E. ?Half of a pentagon.

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Solve the problem.Find the moment of inertia Iz of a tetrahedron of constant density  bounded by the coordinate planes and the plane .

A. 91
B.
C.
D.

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The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).y = 5

A. r cos ? = 5 B. r = 5 C. r sin ? = 5 D. sin ? cos ? = 5

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Determine the function value.Suppose f(x) = logax and f(4) = 2. Find f .

A.
B. 4
C. -2
D. -4

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