he 6 participants in a 200 -meter dash had the following finishing times (in seconds). 30,32,27,27,25, 27, Assuming that these times constitute an entire population, find the standard deviation of the population. Round your answer to two decimal places.

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

What is the ratio of the length of an object in yards to the length of the same object in miles?

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?