Mathematics High School

find the cofactors of each entry in the first row of matrix.

Find The Cofactors Of Each Entry In The First Row Of Matrix.

Answers

Answer 1

Answer:

Ac_11 = -13

Ac_12 = 44

Ac_13 = 27

Step-by-step explanation:

Plato

Answer 2

The cofactors of each entry in the first row of the matrix are

Ac_11 = -13

Ac_12 = 44

Ac_13 = 27

We have to determine the cofactors of each entry in the first row of the matrix.

What is the matrix?

A set of numbers is arranged in rows and columns so as to form a rectangular array. The numbers are called the elements, or entries, of the matrix.

Therefore the cofactors of each entry in the first row of the matrix is

Ac_11 = -13

Ac_12 = 44

Ac_13 = 27

To learn more about the matrix visit:

https://brainly.com/question/1821869

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Related Questions

2x-7=-3x+18


solve for x

Answers

Answer:

x=5

Step-by-step explanation:

2x−7=−3x+18

Step 1: Add 3x to both sides.

2x−7+3x=−3x+18+3x

5x−7=18

Step 2: Add 7 to both sides.

5x−7+7=18+7

5x=25

Step 3: Divide both sides by 5.

5x

5

=

25

5

x=5

Answer:

x = 5

Step-by-step explanation:

2x - 7 = -3x + 18

2x - 7 + 7 = -3x  + 18 + 7

2x = -3x + 25

2x + 3x = -3x + 25 + 3x

5x = 25

x = 5


Which table represents a linear function?

Answers

Bottom right because it is the only one that doesn’t jump from number to number; It just stays at a constant slope of 1

6x-3y =15


(System of Equations)

Answers

Answer:

x= 5/2 + y/2

Step-by-step explanation:

So yeah... that's the answer

What happens when a figure is dilated .

Answers

Answer:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. A dilation that creates a larger image is called an enlargement. A dilation that creates a smaller image is called a reduction. A dilation stretches or shrinks the original figure.

Mike read 1/4 of the newspaper in 1/3 of an
hour. How long did it take him to read the
whole paper?

Answers

An hour and twenty minutes

6. Diana drew a circle on a coordinate grid and shaded the inside, as shown below.
CLEAR AL
w
Which list of ordered pairs represents points located in the shaded part of
Diana's circle?

Answers

it would be the first choice , with (9,3)

Roger gets $40 per day as wages and $4.50 as commission for every pair of shoes he sells in a day. His daily earnings goal is $112.

Answers

i have no idea sorry

The distance from Charles's house to his school is 3 miles. His father gave him a ride for 1,760 yards, and he walked the rest of the way. The distance that Charles walked is miles or yards. (Hint: 1 mile = 1,760 yards.)

Answers

Answer:

2 miles or 3520 yards

Step-by-step explanation:

The distance from Charles's house to his school is 3 miles. His father gave him a ride for 1,760 yards, and he walked the rest of the way. The distance that Charles walked is miles or yards. (Hint: 1 mile = 1,760 yards.)

From the Question, we know that

1 mile = 1,760 yards..

His father gave him a ride for 1,760 yards,

Hence, the number of miles Charle's father drove him was 1 mile

The distance that Charles walked in miles is calculated as:

3 miles - 1 mile

= 2 miles

Converting to yards

1 mile = 1,760 yards..

2 miles = x

Cross Multiply

x = 2 × 1760 yards

= 3520 yards

if the area of the circle is 225pi what is the diameter

Answers

Answer:

30cm

Step-by-step explanation:

Area is πr²

So,

πr²=225π

r=√225

r=15cm

Diameter=2r=30

Maths is easy peasy

A side of the triangle below has been extended to form an exterior angle of 68º. Find
the value of x.

Answers

Answer:

112°

Step-by-step explanation:

180 - 68 = 92°
92 is the answer

Find the measure of x.
5
2.x - 3

Answers

X would equal 4
This is because you will do 5=2x-3
Then add 3 to 5
So 8=2x
Then divide 2 from 8
So 8/2=4
4=x
X=4 because 2x-3=5. Next add 3 on both sides so it become 2x=8. Then divide 2 ton both sides. So x=4

Jackson ran 1 1/2 miles in 1/2 of an hour. What is Jackson's unit rate in miles per hour?

Answers

Answer 3 hours

Step-by-step explanation:

in the following diagram find x​

Answers

Answer:

⚠︎ 65 IS YOUR ANSWER!

Step-by-step explanation:

180-50 = 130

130 / 2= 65

Answer:

x=65

Step-by-step explanation:

you can set up a equation

50 + x+x =180 = 50 + 2x =180

then minus the 50

2x= 130 and the divide by 2

x=65

A bakery offers a sale price of $2.85 for 6 muffins. What is the price per dozen?


The price per dozen muffins is $
.

Answers

5.70$
Have a good day
The answer is $5.70 this is because there is 12 eggs in a dozen so if its $2.85 for 6 you would do $2.85x2 to get $5.70

URGENT HELP NEEDED!!!

Subtract the cube root of the product of x and 3y from the square of the sum of a and b.

Answers

Answer:

[tex](a+b)^{2}- \sqrt[3]{x . 3y}[/tex]

Step-by-step explanation:

Subtract the cube root of the product of x and 3y from the square of the sum of a and b.  

A = The square of the sum of a and b is  [tex](a+b)^{2}[/tex]

B = The cube root of the product of x and 3y is  [tex]\sqrt[3]{x . 3y}[/tex]

They want us to subtract B from A so B - A, therefore the following.

[tex](a+b)^{2}- \sqrt[3]{x . 3y}[/tex]  

Urgent please help..

Answers

B = (-2, 2)

May Nilbin Be With You

Answer:

B' = (-6, 6)

Step-by-step explanation:

Dilation = Multiplying the coordinates of points by the scale factor.

B = (-2, 2)

B' = (-6, 6)

^ Multiply each coord by the scale factor (3)

how to solve 3a+9 and a²-9 i have to find h.c.f

Answers

Answer:

First equation = 3a + 9

= 3( a+3 )

Second equation = a²- 9

= a² - 3 ^ 2

= (a+3) (a-3)

Hence,

HCF = ( a+ 3)

Hope this helped

All the best !!

In a typical week you drive 34.85 km on Monday, 28.23 km on
Tuesday, and 34.95 km on Friday.
If you do not drive Friday this week, how far do you drive?

Answers

Answer:

63.08 km

Step-by-step explanation:

To find how far you drive, add up the km from only Monday and Tuesday, since you aren't driving on Friday

34.85 + 28.23

= 63.08

So, you would drive 63.08 km

sorry but can you guys help me AGAIN ?

Answers

Answer:

D.

Step-by-step explanation:

help ASAP thanks........

Answers

Answer: Yes, they are similar- and the Scale Factor is 2.5

Step-by-step explanation: To find the scale factor, simply divide the larger number on the bigger shape by its counterpart in the smaller image, so for example: 60 divided by 24 is 2.5, and there is your scale factor. You can further test this by multiplying 4 x 2.5 which gives us 10, the other value on the larger shape.

50 POINTS HELP PLS ASAP

Answers

Answer:

G

Step-by-step explanation:

Emma made 10% of her free throws over the season. If she shot 180 free throws, how many did she make?

Answers

Answer:

180*0.1=18

Step-by-step explanation:

Ms. Ingham took 21 pens from a drawer to distribute to the class. If 77 pens
remain in the drawer, how many pens were originally in the drawer?

Answers

Answer:

98 pens

Step-by-step explanation:

If Ms. Ingham took 21 pens and 77 pens remain, add the numbers together to find the total.

21 + 77 = 98

Answer:

98 pens

Step-by-step explanation:

Add: 77+21=98

(Picture included)

Sorry about my handwriting!

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

CATIVO
Secundaria
Pensamiento matemático
Números enteros
Adición y sustracción
5 hrs.
Resuelve problemas de suma con números positivos y negativos.
Resuelve problemas de resta con números positivos y negativos.
Si ahorré $2000 para comprarme ropa y al llegar a la caja de cobro me dicen
que son $2600, los cuales los pago usando una tarjeta de crédito ¿Cómo
represento la cantidad de dinero que tengo y debo? Si posteriormente le pido
prestado a un amigo $650 y me doy cuenta de que debo de la mensualidad de
mi celular 3 meses que son $250 ¿Cuánto dinero tengo y como lo represento
esta cantidad? Al final de los dos procesos ¿Cuánto dinero tengo o adeudo?​

Answers

Answer:

La cantidad de dinero adeuda al final de los dos procesos es $1450

Step-by-step explanation:

Los parámetros del proceso son;

La cantidad ahorrada para comprar ropa = $2,000

La cantidad pagada por la ropa = $2600

La cantidad prestada a un amigo = $650

La cantidad adeuda por teléfono celular durante 3 meses = $250

Deje que 'C', represente la suma de las transacciones anteriores, tenemos;

∴ C = 2,000 - 2,600 - 650 - 200 = -1,450

La suma de las transacciones anteriores, C = -$1,450

Por lo tanto, al final de los dos procesos, la cantidad de dinero adeuda es C = $1,450

-

I NEED THIS ASAP!!! WHOEVER ANSWERS FIRST WILL MARK BRAINLEST

Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation:
a) y = 3.5x + 4; A(...; 5), B(10; ...)


b)7x − 5y = 12; A(...; 9), B(4; ...)

c)y = − 37 x +3; A(...; 6), B(9; ...)

d)y = 0.3x + 1; A(...; 9), B(5; ...)



please answer asap
ty :P

Answers

Answer:

LOOK

Step-by-step explanation:

Put the points into the equation and solve for the missing value.

(5,-9); slope=2/5
Write in slope intercept form

Answers

Answer:

Y = 2/5x - 11

Step-by-step explanation:

Write a verbal sentence to represent each equation.
8+3x=5

Answers

Answer:

eight plus three times a number

Step-by-step explanation:

I think I'm wrong I don't know I'm not really the master at this (but feel free to do tell me if I'm wrong)

Answer:

eight plus there = to a number

Step-by-step explanation:

please give me brainliest

kk my baby bro needs help it math 7th grade
0.4(3.21x+5.6)

Answers

Answer:

1.284x + 2.24 is the answer.

Step-by-step explanation:

Simply, all we have to do is distribute the 0.4 to the 3.21x and the 5.6.

(0.4 × 3.21x) + (0.4 × 5.6)

= 1.284x + 2.24

#teamtrees #WAP (Water And Plant)

Answer: = 1.284x + 2.24

explanation: This question is easily solved through the process of distribution.

(0.4 × 3.21x) + (0.4 × 5.6) = 1.284x + 2.24

Sorry for the late answer hope this helped!

Which is more, 7 quarts or 218 fluid ounces?

Answers

Answer:

I think 7 quarts is just trying to help ya out ;)

Step-by-step explanation:

Answer:

7 quarts

Step-by-step explanation:218 fluid ounces=6.8125 quarts

Thats why 7 quarts is grater

(3x - 16)
(lly-32)
(6x + 7)

Answers

Answer:

ummm What is the quastion ?

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