Name the polygon. 

A. quadrilateral
B. hexagon
C. triangle
D. nanogon
E. pentagon


Answer: A

Mathematics

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Evaluate the expression.-6 + 7 ? 9

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Solve the problem. If necessary, round to the nearest tenth, unless intructed otherwise.A painter leans a ladder against one wall of a house. At what height does the ladder touch the wall?

A. 4.9 ft B. 48 ft C. 9.8 ft D. 12 ft

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In a submerged trial run of an attack submarine, a reading of the submarine's velocity was made every quarter hour, as shown in the accompanying table. Use the trapezoidal rule to estimate the distance traveled by the submarine during the 2-hour period. Please round the answer to the nearest hundredth if necessary.

Time, t (hr)0Velocity, V(t) (mph)19.42333.839.437.235.127.826.23.8? A. 52.89 mi B. 54.15 mi C. 58.52 mi D. 45.47 mi E. 47.87 mi

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Find the slope of the line through the given pair of points.(-16, -2) and (7, -12)

A. -  
B.  
C.
D. -  

Mathematics