Mathematics, 29.06.2019 18:00 TheVariableWhoLived
Joseph is going on a trip and he needs to rent a car. he looks online and finds two companies that offer different pricing options for car rentals. company a charges $0.25 per mile plus a $50 rental fee. company b charges $0.45 per mile plus a $20 rental fee. what is the minimum number of miles that joseph must drive in order for company a to be a better buy? the company charges only for whole number mileage (not fractional increments of miles driven). a) 125 miles b) 149 miles c) 150 miles d) 151 miles
Answers: 1
Mathematics, 21.06.2019 15:20, aliceotter2007
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?
Answers: 1
Joseph is going on a trip and he needs to rent a car. he looks online and finds two companies that o...
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