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BlackZzzverrR [31]
1 year ago
11

The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A.

Mathematics
1 answer:
STatiana [176]1 year ago
4 0

The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A it is true.

The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A. A determinant of an n×n matrix can be defined as a sum of multiples of determinants of (n−1)×(n−1) sub matrices.

This is done by deleting the row and column which the elements belong and then finding the determinant by considering the remaining elements. Then find the co factor of the elements. It is done by multiplying the minor of the element with -1i+j. If Mij is the minor, then co factor, c_{ij} = -1^{i+j} + m_{ij}.

Each element in a square matrix has its own minor. The minor is the value of the determinant of the matrix that results from crossing out the row and column of the element .

Learn more about the minor of the matrix here:

brainly.com/question/26231126

#SPJ4

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allochka39001 [22]

I believe since you are looking for the angle of M<ABC, you just add both 120 and 25 together, since they practically share a point.

So 120 + 25 = 145

So I guess 145 would be your answer.

I remembered this type of problem from Geometry.

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2 years ago
Fast I need to know what 20/22= x/11
sergij07 [2.7K]

Answer:

To Find => The value of x. in the equation below

=>

20 \div 22 = x \div 11

Step-by-step explanation:

We will cross Multiply the digits

=>20 \div 22 = x \div 20

=>We'll cross Multiply

=>

20 \div 22 = x \div 11 \\  =  > 22x = 20 \times 11 \\  = >  22x = 220 \\  =  > x = 220 \div 22 \\  =  > x = 10

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4 0
3 years ago
Three of the thirty computers are out of service (not working). What percent are working?
AveGali [126]

Answer:

Percentage of computers working equals:

90%

Step-by-step explanation:

Three of the thirty computers are out of service.

Number of computers working=30-3=27

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Percentage of working computers=

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90%

3 0
2 years ago
Read 2 more answers
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laiz [17]

Answer:

option B.

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Step-by-step explanation:

Since we are dealing with a normal distribution

68.27% of the values will fall in the range with the standard deviation

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Approximately 15.86% of the values will be higher than 210

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3 years ago
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