Write the expression with positive exponents only. Then simplify, if possible.(-4)-2

A. - 
B. -16
C. 16
D.


Answer: D

Mathematics

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Solve the problem.The side of an equilateral triangle is  shorter than the side of a square. The perimeter of the square is  more than the perimeter of the triangle. Find the length of a side of the square.

A. 25 inches B. 22 inches C. 26 inches D. 27 inches

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Find the derivative of the function.y = (x + 1)2(x2 + 1)-3

A.
B.
C.
D.

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Solve.What is 160% of 2,010?

A. 321,600 B. 322 C. 3,216 D. 32,160

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Use analytical methods to solve the equation. = 

A. 3 B. -1 C. 1 D. -3

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