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Aleks04 [339]
2 years ago
7

SUPER DUPER IMPORTANT!!! VERY URGENT!

Mathematics
1 answer:
DaniilM [7]2 years ago
8 0
I think its 8cc but i could be wrong
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Zane performs the elementary row operation represented by R2-½R1 on matrix A.​
UkoKoshka [18]

Answer:

[2 5 0]

[-7 -11/2 12]

Step-by-step explanation:

We want to perform elementary row operation represented by R2 - ½R1 on matrix A in the figure attached.

Now, matrix A is given as;

[2 5 0]

[-6 -3 12]

Now, R1 is row 1 = [2 5 0]

R2 is row 2 = [-6 -3 12]

Thus, R2 - ½R1 = [-6 -3 12] - ½[2 5 0]

This gives;

[-6 -3 12] - [1 5/2 0] = [-7 -11/2 12]

Now,[-7 -11/2 12] will be the new row 2 since it's just an elementary row operation we did on the Matrix A.

Thus, the new matrix is now;

[2 5 0]

[-7 -11/2 12]

5 0
2 years ago
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Evaluate d – 7.5 when d = –3.82.
iren [92.7K]
-11.32 Hope this helps!
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2 years ago
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Which phrase describes the algebraic expression 5 +w? Plz i need answer fast i will mark brainliest and follow you
Sauron [17]

Answer:

A I believe

Step-by-step explanation:

b is division c is saying w is more than 5 which isn't proven and d is also not proven

4 0
3 years ago
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What is the length of the line segment with endpoints (−3,8) and (7, 8) ? Enter your answer in the box
ki77a [65]
Length = √(y2-y1)² + (x2-x1)²
l = √(8-8)² + (7+3)²
l = √10²
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In short, Your Answer would be 10 units

Hope this helps!
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How to find the slope<br>​
Ostrovityanka [42]

Answer:

Step-by-step explanation:

The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points

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3 years ago
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