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Sav [38]
3 years ago
15

What is the product? 1/2• [12 64 78 30]

Mathematics
1 answer:
Marina86 [1]3 years ago
4 0
Option C is the right answer

½(12) = 6
½(64) = 32
½(30) = 15
½(78) = 39
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In Exercises 23–36, solve the system using either Gaussian elimina- tion with back-substitution or Gauss-Jordan elimination. 23.
Luba_88 [7]

Answer:

23) x= 3, y = 4

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Step-by-step explanation:

For the first system(23), it goes like this

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We need to do L2 = L2 - 2L1, so now it is

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So, now we have:

-3y = -6 *(-1)

3y = 6

y = 2

x + 2y = 7

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Now for system 24, we have:

[-1 2 | 1.5]

[2 -4| 3]

We do L2 = L2 + 2L1, so we have:

[-1 2 | 1.5]

[0 0| 0]

So there are infinite solutions for this system. The solution for this system will be each (x,y) pair where x = 1.5 - 2y.

5 0
3 years ago
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lubasha [3.4K]

Answer:

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8 0
3 years ago
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6 0
2 years ago
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2 years ago
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