Simplify the expression. Write the result using positive exponents only.
-4
A. 
B. 
C. -81
D. 81
Answer: D
Mathematics
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Find an algebraic expression for the given expression.tan(tan-1 x + tan-1 1)
A. 
B. 
C. 1
D. 
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Solve the equation.y3 - y = -5y2 + 5
A. {25} B. {1, - 5, 5} C. {-5, 5} D. {-1, 1, - 5}
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Solve the problem. Round to the nearest tenth if necessary.The string on a balloon is 23 mm long. What is this length measured in cm?
A. 2.3 cm B. 0.2 cm C. 2300 cm D. 230 cm
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Find the transpose of the matrix.
A. 
B. 
C. 
D. 
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