Aproduction manager tests 10 batteries and finds that their mean lifetime is 468 hours. she then designs a sales package for this type of battery. it states that consumers can expect the battery to last approximately 500 hours. this is an example of what phase of inferential statistics?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Drag each tile into the correct box. not all tiles will be used. find the tables with unit rates greater than the unit rate in the graph. then tenge these tables in order from least to greatest unit rate

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.