The first- aid center of starved Rock needs to be at a point that is equidistant from three bike paths that intersect to form a triangle. locate this point so that in an emergency medical personnel will be able to get any one of the paths by the shortest route possible. which point of concurrency is it This is a geometry constructions packet

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?