Problem 2) If the volume of a rectangular prism is 30  3 and its height is 5 , its length is 2 , what is its width? Problem 3) The volume of a rectangular prism is 125  3 and its height is 5 .
Averages for Washington DC in September. The weather in September in Washington DC is very attractive for those that want to avoid the peak heat of summer, yet still enjoy lots of warm days on their visit. On average, peak temperatures during the day in September still reach up to 27Â°C.
Best Times to Visit Washington D.C. The best times to visit Washington, D.C., are from September to November and March to May. In the autumn, the sweltering summer is gone, taking with it most of the high-season tourists. All that's left are crisp breezes and changing leaves, which, by the way, look great against all those marble monuments.