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anonymous
 one year ago
Will fan and medal
Use a graphing calculator or spreadsheet software to solve 4x + y + z = 1
8x – 4y – 7z = 2
5y + 9z = 3
using matrices
A. (0.5, 3, 2)
B. (1, 2, 3)
C. (3, 0.5, 2)
D. (0.5, 3, 2)
anonymous
 one year ago
Will fan and medal Use a graphing calculator or spreadsheet software to solve 4x + y + z = 1 8x – 4y – 7z = 2 5y + 9z = 3 using matrices A. (0.5, 3, 2) B. (1, 2, 3) C. (3, 0.5, 2) D. (0.5, 3, 2)

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IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1these are 3 planes, yep: \(4x + y + z = 1 \\ 8x – 4y – 7z = 25 \\ 0 x + y + 9z = 3\) any idea what the "answer" means ? :p

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Don't you solve for x, y, and z?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im in geometry but i can try

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im sorrry, idk this :(

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Hey it's all good. I don't know this either.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But thanks for trying anyway

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1I think you are supposed to do something like this: +++++++++++++++++ import numpy as np a = np.array( [ [4,1,1], [8,4,7], [0,5,9] ] ) b = np.array([1,2,3]) x = np.linalg.solve(a, b) print x +++++++++++++++++ Connected to pydev debugger (build 141.1899) [ 0.5 3. 2. ] it says: "graphing calculator or spreadsheet software "

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1it certainly assumes some knowledge if that is lacking, we can have a crack at solving just 2 of them: \(4x + y + z = 1; \\ 8x – 4y – 7z = 2\)

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1or these: \(8x – 4y – 7z = 2 \\ 5y + 9z = 3\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0[0.5, 3, 2] is correct. I just guessed and got 100%

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1awesome, telepathic!!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you for your help!
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