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Nonamiya [84]
3 years ago
12

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x

-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20

Mathematics
1 answer:
Kisachek [45]3 years ago
7 0
You should find that your system doesn't have solutions. This is also confirmed by the fact that the determinant of the matrix of the coefficient of the variables x, y and z is equal to zero.

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4 years ago
2.58, 2 5/8, 2.6, 2 2/3 least to greatest
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Answer:

2.58, 2.6, 2 5/8, 2 2/3

Step-by-step explanation:

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How do the graph of f(x) and f−1(x) relate
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3 years ago
HELPPPPPPPP PLSSSS I HAVE 30 BEFORE THIS IS DUE
postnew [5]

Answer:

The line equation in slope-intercept form is:

y\:=-\frac{2}{5}x+4

Hence, option D is true.

Step-by-step explanation:

Given the points

  • (0, 4)
  • (5, 2)

Finding the slope between the points

\left(x_1,\:y_1\right)=\left(0,\:4\right),\:\left(x_2,\:y_2\right)=\left(5,\:2\right)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

m=\frac{2-4}{5-0}

m=-\frac{2}{5}

As the y-intercept is obtained by setting the value x = 0.

As we know that when x = 0, the vale of y-intercept y = 4

so the y-intercept is b = 4.

As the slope-intercept form is

substituting the slope m = -2/5 and the y-intercept b=4

y  = mx+b

y\:=-\frac{2}{5}x+4

Therefore, the line equation in slope-intercept form is:

y\:=-\frac{2}{5}x+4

Hence, option D is true.

6 0
3 years ago
Suppose a population contains 80,000 people. All else being equal, a study based on a population sample that includes which of t
Helga [31]
I'd say A. 8000, because you'd get the most answers and the biggest variety in answers for a more accurate sample.
6 0
3 years ago
Read 2 more answers
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