Simplify the expression.
-1/2
A. 
B. 
C. 
D. Not a real number
Answer: B
Mathematics
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Find the formula for df-1/dx.f(x) = (4 - x)3
A. -3(4 - x)2
B. 4 - x1/3
C. x2/3
D. - 
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Graph the solution set of the system of inequalities.?x? ? 5y ? 3y ? x2 - 3
A. 
B. 
C. 
D. 
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Use the unit circle to determine the value of the given expression or state that it is undefined.sin 
A. undefined B. -1 C. 1 D. 0
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Use the appropriate formula to solve the problem.The perimeter of a rectangle is 68 m. If the width were doubled and the length were increased by 7 m, the perimeter would be 110 m. What are the length and width of the rectangle?
A. width 14 m, length 20 m B. width 17 m, length 17 m C. width 20 m, length 14 m D. width 12 m, length 17 m
Mathematics