2 years ago

To be called the Order of the Maandor of minors nonzero in a Matrix:

Mathematics

1 answer:

Montano1993 [528]2 years ago

7 0

Answer:

To be the Order of the maandor of Minors nonzero in a matrix

Diagonal of a matrix

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Solve 3x2 = −12x − 15. x = −4 ± 2i x = −4 ± i x = −2 ± 2i x = −2 ± i

diamong [38]

ANSWER

$x = - 2 \pm i$

EXPLANATION

We use the method of completing the squares.

The equation is
$3 {x}^{2} = - 12x - 15$

We rewrite the above equation to obtain;

$3 {x}^{2} + 12x = - 15$

We divide through by 3 to obtain;

${x}^{2} + 4x = - 5$

We add half the coefficient of
$x$

to both sides of the equation to get,

${x}^{2} + 4x + {2}^{2} = - 5 + {2}^{2}$

The right hand side is now a perfect square.

${(x + 2)}^{2} = - 1$

We now take square root of both sides to get;

$x + 2 = \pm \sqrt{ - 1}$

We add -2 to both sides,

$x = - 2 \pm \sqrt{ - 1}$

We simplify to obtain,

$x = - 2 \pm i$

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2 years ago

1.Are AC^line and BE^line congruent? Explain.

Ksivusya [100]

Line AC has 7 spaces and line BE has 8

to know this you count from letter A to C which is 7. and then B to E which is 8

They ARE NOT CONGRUENT

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2 years ago

Taylor estimates that the faucet in her kitchen drips at a rate of 1 drop every 2 seconds. James wants to know how many times he

Vsevolod [243]

Answer:

302400

Step-by-step explanation:

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2 years ago

What is the surface area? 10 ft 8 ft 10 ft 12 ft 10 ft

amid [387]

Answer:

12×8/2=48

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2(48)+3(100)

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1 year ago

5x-2+3x=17+12x-23 please show all steps

vlabodo [156]

5x-2+3x=17+12x-23 combine like terms
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-8x -8x
-2=4x-6
+6 +6
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x=1

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2 years ago