Of the students living in the dormitories ata University, 58% live at the west hall, and the rest at the south tower. A sandwich shop randomly mails a coupon for a free sandwich to 26%of those at the west hall, and to 19% of those living at the south tower. A student living in a dormitory is randomly chosen. Find the probabilitythat this student does not receive a coupon.(Round your answer

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

In the 30-60-90 triangle below side s has a length of and side r has a length

How do you solving the solution of each system using elimination?