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Rasek [7]
3 years ago
5

PLease help me out with this...I will mark the first one as the brainiest answer.

Mathematics
2 answers:
Slav-nsk [51]3 years ago
3 0
You cannot add row 2 to column 3 because they have different dimensions. You can do any of the other operations, but the only one that makes any sort of sense is ...
  Multiply row 2 by -1 and add it to row 3

_____
It makes no sense to multiply a row by zero. That makes the entire row zero and makes the matrix useless for finding any sort of solution.

You can switch columns, but that doesn't get you any closer to a solution here.

If I were trying to find a solution, I might
  switch rows 1 and 2
  multiply the new row 1 by -3 and add it to the new row 2
  multiply the new row 1 by 2 and add it to row 3
This sequence of operations will make the first column [1 0 0], reducing the problem to 2×2 from 3×3.
noname [10]3 years ago
3 0

Answer:

yoooooooooooooooooo

Step-by-step explanation:

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Evaluate the expression when n= -2<br> 5n+30
sammy [17]

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Which equation represents the line that passes through the points (-3, 7) and (9,-1)? oy--3x+5 o y=-x-7 o y=zx-7 oy - 12 2x+5​
nekit [7.7K]

Answer:

use the slope equation (y2-y1) / (x2 -x1). plug in values and solve

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then, plug in one of the points and the slope into the slope-point equation.

(y - y1) = m (x - x1) (the point-slope form)

y - 7 = -2/3( x - (-3)) (plug in the slope and point 1 values, then solve)

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Step-by-step explanation:

I hope this helps :))

4 0
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How much taller is a meter stick than 65 cm<br><br><br> will mark as brainiest
Lisa [10]

Answer:

it's 13 meters taller

Step-by-step explanation:

both meters are not the same which means it can't be another number

7 0
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