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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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A bag contains 8 red balls and 4 white balls. Two balls are drawn without replacement. (Enter your probabilities as fractions.)
RoseWind [281]

Answer:

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6 0
2 years ago
Some teenagers collected trash for a beach cleanup. The data for the number of pounds of trash collected by each teenager are sh
Mumz [18]

Answer:

4.66

Step-by-step explanation:

We are given the following data

26, 26, 21, 22, 20, 25, 35

Step 1

We find the Mean

Mean = 26+ 26+ 21+ 22+20+25+ 35/7

= 175/7

= 25

Step 2

We find the Standard Deviation

The formula for Standard deviation that we would use is the Population Standard deviation, this is because the data given above is the data of the number of pounds of trash collected by each teenager

= √(x - Mean)²/n

= √(26 - 25)²+( 26 - 25)²+ (21 - 25)²+ (22 - 25)² +(20 - 25)²+(25 - 25)²+ (35 - 25)²/7

= √152/7

= √21.7142857

= 4.65985898

Approximately = 4.66

5 0
2 years ago
Read 2 more answers
Please help! its due today!!
nekit [7.7K]

Answer:

14

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a=1

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3 0
2 years ago
What is difference 6 1/4. And 5 1/2
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3 years ago
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Vadim26 [7]

Answer:

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