Expand the logarithmic expression.


Mathematics

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Add or subtract as indicated. Simplify, if necessary. + 

A.
B.
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D.

Mathematics

Factor the polynomial completely.81x2z + 126xyz + 49y2z

A. z(9x + 7y)2 B. z(9x + 7y)(9x - 7y) C. z(9x - 7y)2 D. (9xz + 7yz)2

Mathematics

Evaluate the first partial derivatives of the function at the given point.  ?

A.

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B. ?

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C. ?

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D. ?

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Mathematics

Solve the problem.The perimeter of a rectangle is 22 cm. One side is 5 cm longer than the other side. Find the lengths of the sides.

A. 4, 9 B. 3, 8 C. 3, 5 D. 6, 11

Mathematics