Determine the weighted mean for the observations of a distance are recorded as 472.15. 472.19, 472.22 and 472.20 and the relative weights to individual observations are 1,2,3, and 2 by the land surveyor. A) 472.198 ft B) 472.200 ft C) 472.220 ft D) 472.210 ft Compute linear misclosure using the following data: Station Azimuth Length (ft) A 130° 650 B 170° 200 C 15° 700 D 284° 610 E 206° 285 Options: (A)47.29 ft (B) 57.3 ft (C) 37.3 ft (D) 40.3 ft The length of the column is 3.5 m. Given that the column is fixed at both the ends, calculate the ratio of actual length and effective length. A) 2 B) 0.5 C) 1 D) 0.7 Determine the force in member DC: A) -5kN 20 kN M E 8 kN C) -9.5kN D) 0 kN B) 9.5 kN Choose the correct option for this graph? Cost Curve C Curve B Curve A Quantity A) Curve A- Variable Cost, Curve B - Total Cost, Curve C - Fixed Cost B) Curve A- Fixed Cost, Curve B - Variable Cost, Curve C- Total Cost C) Curve A- Fixed Cost, Curve B - Total Cost, Curve C - Variable Cost D) Curve A- Variable Cost, Curve B - Fixed Cost, Curve C-Total Cost