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alex41 [277]
3 years ago
7

Xavier performs the elementary row operation represented by Ri - R, on matrix A.​

Mathematics
1 answer:
yaroslaw [1]3 years ago
5 0

Answer:

4   3   0

7  9/2 -6

Step-by-step explanation:

Just took the test

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6. If F(x) = -6(2x2 + 5x) - 9, what is the value of F(-4)?
Soloha48 [4]

Answer:

-81

Step-by-step explanation:

-6(2x² + 5x) - 9

substitute -4 for 'x'

-6[2(-4)² + 5(-4)] - 9

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-72 - 9 = -81

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3 years ago
8<br> p varies directly as the square root of q.<br> p = 8 when q = 25.<br> Find p when q = 100.
Lostsunrise [7]

Answer:

16

Step-by-step explanation:

p=k√q

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8=k5

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p=8/5*10

p=16

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3 years ago
Use parallelogram ABCD. What are the values of x and y?<br><br> x = <br> y =
Tasya [4]

Answer:

x = 17 and y = 10

Step-by-step explanation:

ABCD is a parallelogram

So AB = CD and AD = BC

so

3x - 9 = 42

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and

4y - 3 = 37

4y = 40

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Answer

x = 17 and y = 10

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3 years ago
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I need help. i will give brainiest as soon as possible
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Answer:

B

Step-by-step explanation:

Let me know if you need an explanation.

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