2 years ago

please help me i need this done today report cards are coming out this Friday i tried solving them but i can't please helpp

Mathematics

1 answer:

Lapatulllka [165]2 years ago

5 0

Answer:

c; 180 cm

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanatioN:

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2 years ago

Solve the system using either Gaussian elimination with back-substitution or Gauss-Jordan elimination. (If there is no solution,

Gnom [1K]

Answer:

x1=-4/5, x2=18/5 and x3=7/5

Step-by-step explanation:

$\left[\begin{array}{ccc|c}1&0&-3&-5\\3&1&2&4\\2&2&1&7\end{array}\right]$

you can do linear combination between the rows:

2nd row=R2-3R1 and 3th row=R3-2R1

$\left[\begin{array}{ccc|c}1&0&-3&-5\\0&1&11&19\\0&2&7&17\end{array}\right]$

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3 years ago