Perform the indicated operation.
A. -10
B. 11
C. 10
D. -9
E. -11
Answer: E
Mathematics
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Multiply and simplify.
A. 
B. 
C. 
D. 
Mathematics
Find all values of ? in [0°, 360°) that satisfy the equation.cot ? = 1
A. {45°, 315°} B. {135°, 225°} C. {225°, 315°} D. {45°, 225°}
Mathematics
Translate the sentence to an algebraic inequality.The score on a test was between 82 and 70.
A. x > 70 B. x < 82 C. 70 < x < 82 D. 82 < x < 70
Mathematics
Solve the problem.A building has an entry the shape of a parabolic arch 46 ft high and 36 ft wide at the base. Find an equation for the parabola if the vertex is put at the origin of the coordinate system. 
A. y2 = -28.2x B. y2 = -7x C. x2 = -28.2y D. x2 = -7y
Mathematics