Mathematics, 05.06.2020 02:57 JeffTheGoat
A family needs to build fencing around their rectangular
home and square swimming pool, depicted below.
The total amount of fencing they need can be written as
+10.
Pool (2x) yd
Ifx = 5;
The family needs
home.
yards of fencing for their
yards of fencing for their
Home
(2 + 5x) yd
The family needs
pool.
(3- 10w) yd
Answers: 2
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
Mathematics, 21.06.2019 20:00, trevorhenyan51
Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.
Answers: 1
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