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katrin [286]
3 years ago
9

The value of 8 in 56982 is ------ times as large as the value of 8 in 156408

Mathematics
1 answer:
mario62 [17]3 years ago
8 0
10 times as much because of the 8 in the ones place and the first 8 is in the tens place
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What is the value of X
Sindrei [870]
The answer is:  [C]:  " 3 " .
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Explanation:
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         4x - 1 = 2x + 5 ;  Solve for "x" ; 
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 Subtract "2x" from each side of the equation; and add "1" to each side of the equation:
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       4x - 1 - 2x + 1 = 2x + 5 - 2x + 1 ;
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          2x = 6 ;
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Divide EACH side of the equation by "2" ; to isolate "x" on ONE side of the equation;  and to solve for "x" ;
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          2x / 2  =  6 / 2 ;
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The answer is:  [C]:  " 3 " .
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4 0
3 years ago
What is the inverse matrix that can be used to solve this systems of equations
Gala2k [10]

Step-by-step explanation:

The answer is OPTION C

Find the Inverse of a 3x3 Matrix.

First

Find the Determinant of A(The coefficients of e

Proceed towards finding the CO FACTOR of the 3x3 Matrix.

+. - +

A= [ 1 -1 -1 ]

[ -1 2 3 ]

[ 1 1 4 ]

The determinant of this is 1.

Find the co factor

| 2 3 | |-1 3 | |-1 2 |

| 1. 4. | |1 4 | |1. 1 |

|-1. -1 | |1 -1 | |1 -1

| 1. 4 | |1. 4| |1 1|

|-1. -1 | |1 -1 | |1. -1

|2. 3| |-1. 3| |-1 2|

After Evaluating The Determinant of each 2x 2 Matrix

You'll have

[ 5 7 -3]

[3 5 -2 ]

[-1 -2 1]

Reflect this along the diagonal( Keep 5,5 -2)

Then switching positions of other value

No need of Multiplying by the determinant because its value is 1 from calculation.

After this

Our Inverse Matrix Would be

[ 5 3 -1 ]

[7 5 -2 ]

[ -3 -2 1]

THIS IS OUR INVERSE.

SO

OPTION C

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Alex Ar [27]

Answer:

y= -5/6x-2/9

the / is a fraction

Step-by-step explanation:

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