Mathematics, 08.06.2021 17:20, Geo777
1A. Find A and B such that (2,-3) is a solution to the following system: A x plus 7 y equals 13
minus 2 x plus B y equals 5 . Explain your reasoning and show all relevant work.
B. Then verify that your values for A and B work by plugging these values into the system, and solving the it using the substitution method or elimination method (your choice). Show all appropriate work.
Answers: 1
Mathematics, 21.06.2019 15:00, m4167281
Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?
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
Mathematics, 21.06.2019 17:30, rainbowsauxe
Is it true or false i’m trying to pass this test so i can leave school
Answers: 2
Mathematics, 21.06.2019 19:30, ochoanene822
Which of the following transformations will always produce a congruent figure?
Answers: 2
1A. Find A and B such that (2,-3) is a solution to the following system: A x plus 7 y equals 13
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