A pitched roof has a rise of 12.9 meters. If the rise to span ratio is 1:3, what is the span of the roof? 40 meters
4.3 meters
38.7 meters
6.2 meters

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8