Simplify the expression and write the answer without negative exponents. 
-2
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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?Which of the following polyhedra is not a regular polyhedron?
A. ?Tetrahedron B. ?Octahedron C. ?Icosahedron D. ?Cube E. ?Diahedron
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Name the angle in five different ways.
A. Angle ABC, angle CBA, ?ABC, ?CBA, or ?B B. Angle B, angle CAB, ?ABC, ?CBA, or ?B C. Angle ABC, angle B, angle CBA, angle ACB, or ?B D. ?ABC, ?CBA, ?B, ?BCA, or angle B
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Solve the problem.A twenty-five foot ladder just reaches the top of a house and forms an angle of 41.5° with the wall of the house. How tall is the house? Round your answer to the nearest 0.1 foot.
A. 18.8 ft B. 18.6 ft C. 18.7 ft D. 19 ft
Mathematics
Solve and graph.f + 11 < 2
A. f ? -9
B. f ? -9 
C. f < -9 
D. f > -9 
Mathematics