which statements must be true about the reflection of δxyz across ? select three options. m∠x'z'y' = 90° m∠mcy = 90° xx' ≅ yy' bz' ≅ bz xy || x'y'

Which of the following would be considered a nec code violation in regards to the installation of luminaires? a. an outdoor lighting fixture mounted to a tree b. a five-pound, 12-inch diameter light fixture supported by the screw shell of the lampholder c. florescent lay-in fixtures attached to the framing sections of a suspended ceiling with sheet-metal screws d. track lighting over a sink, 2 feet from a bathtub