What is the value of (-14^0)^-2?

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

See attachment below and find the equivalent of tan(∠qsr)