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andriy [413]
4 years ago
8

What is value of this expression below when y=3 8y^2-y-8

Mathematics
2 answers:
serg [7]4 years ago
8 0
Plug in 3 for y
8(3)^2-(3)-8
8(9)-3-8
72-3-8 = 61
VMariaS [17]4 years ago
8 0

Answer:

61

Step-by-step explanation:

8x3^2 -3-8

8x9-3-8

72-3-8

72-11

61

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3 years ago
Zane performs the elementary row operation represented by R2-½R1 on matrix A.​
UkoKoshka [18]

Answer:

[2 5 0]

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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;

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

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This gives;

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[2 5 0]

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5 0
3 years ago
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