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inna [77]
2 years ago
10

Please help Consider the matrices.

Mathematics
1 answer:
Andrei [34K]2 years ago
7 0

_ _

| - 17 |

PQ = | - 3 |

| - 37 |

|_ 49 _|

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Help pleaseeeeeeeeeeeeeeeeeeeeeeee
Evgen [1.6K]

Theee answerr is 19.

hope this helps

3 0
2 years ago
Solve the following 3 × 3 system. Enter the coordinates of the solution below.
ICE Princess25 [194]

Step-by-step explanation:

2x - 3y - 2z = 4

[2] x + 3y + 2z = -7

[3] -4x - 4y - 2z = 10

Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = -3y - 2z - 7

// Plug this in for variable x in equation [1]

[1] 2•(-3y-2z-7) - 3y - 2z = 4

[1] - 9y - 6z = 18

// Plug this in for variable x in equation [3]

[3] -4•(-3y-2z-7) - 4y - 2z = 10

[3] 8y + 6z = -18

// Solve equation [3] for the variable z

[3] 6z = -8y - 18

[3] z = -4y/3 - 3

// Plug this in for variable z in equation [1]

[1] - 9y - 6•(-4y/3-3) = 18

[1] - y = 0

// Solve equation [1] for the variable y

[1] y = 0

// By now we know this much :

x = -3y-2z-7

y = 0

z = -4y/3-3

// Use the y value to solve for z

z = -(4/3)(0)-3 = -3

// Use the y and z values to solve for x

x = -3(0)-2(-3)-7 = -1

Solution :

{x,y,z} = {-1,0,-3}

6 0
2 years ago
How do I figure the equation out
Tatiana [17]

Answer:

<em><u>Answer for Parallel line:</u></em> y = 3x - 13

<em><u>Answer for Perpendicular line: </u></em>y = (-1/3)x +17/3

Step-by-step explanation:

<em><u>Parallel line</u></em>

For the slope of a line parallel to another (given) line, just read the slope of the given line. It (in this case) is the coefficient in front of the x.

m = 3

So far what you have is y = 3x + b

To find b, use the given point (2,5)

x = 2

y = 5  Substitute these values into the skeletal equation. y = 3x + b

2 = 3*5 + b     Subtract 15 from both sides.

2 = 15 + b

2 - 15 = b switch sides

b = - 13

Answer y = 3x - 13

Part B

<em><u>Perpendicular line</u></em>

The perpendicular line will have a slope determined by the following formula

m1 * m2 = - 1

m1 is the slope of the given line which is 3

3 * m2 = - 1

m2 = - 1/3

So far, what you have is

y = (-1/3)x + b To find b, use the same 2 givens as above.

y = 5

x = 2

Substitute into the skeletal equation.

5 = (-1/3)(2) + b

5 = -2/3  + b  Switch sides.  

b - 2/3 = 5  Add 2/3 to both sides.

b = 5 + 2/3

b = 5 2/3 = 17 / 3

Answer

y = (-1/3)x + 17/3

If this doesn't seem right, and you have choices, could you please list them?

4 0
2 years ago
Factor 1/2 out of 1/2x + 3/2
EastWind [94]

<span><span>The answer to the question is:</span></span>

<span><span /></span><span><span>−<span>12</span><span>(x−12)</span></span> </span>



7 0
3 years ago
What’s the answer to this ?
alexgriva [62]

Answer:

|||

Step-by-step explanation:

the answer is c (|||)

7 0
3 years ago
Read 2 more answers
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