What is the step by step process of adding and subtracting matrices

Answers

Answer 1
ANSWER: We can only add or subtract matrices if their dimensions are the same. To add matrices, we simply add the corresponding matrix elements together. To subtract matrices, we simply subtract the corresponding matrix elements together.

HOPE THIS HELPS!!

Related Questions

Identify the property used in each step of solving the inequality 7x+4<46

Answers

Answer:

your answer would be : x<6

Answer:

Step 2) Addition

Step 3) Multiplication

Step-by-step explanation:

Edge 2021

Using the paths shown, the distance from Brookfield to Seaside is 20.4 kilometers.
How far is it from Brookfield to Yardley?

Answers

Answer:

7.2 km

Step-by-step explanation:

Distance between Brookfield to Seaside = 20.4 km

Distance between Yardley and Seaside = 13.2 km

Let distance between Brookfield to Yardley be x.

Thus:

x + 13.2 km = 20.4 km

Subtract 13.2 from each side

x = 20.4 - 13.2

x = 7.2

Distance from Brookfield to Yardley is 7.2 km

What is an expression that is equivalent to 5x

Answers

25x^2 squared maybe?
5x + 5x^0
If im wrong then I’m sorry, I hope I’m right and you get a good grade or score or etc

Please help!! ASAP!!

Answers

Answer:

47.56

Step-by-step explanation:

i know

Answer:

jhb iunohiuhbiuohijhiuoniu8bkiujb

Step-by-step explanation:

expand and simplify (3c+4)(5+2c)

Answers

Answer:

6c(square)+23c+20

Step-by-step explanation:

15c+6c(square)+20+8c=6c(square)+23c+20

Sarah can drive her car 12 miles using 1/3 gallon of gas. How many miles can she drive on one gallon of gas?

Answers

36 miles. Because 1/3 is 12 miles then 12 times three will be one gallon

Which of the following shows the graph of y= 2ex

Answers

Answer: more detail pls

Step-by-step explanation:

Answer:

Im pretty sure it's the third option C

Step-by-step explanation:

Factor the expression given below. Write each factor as a polynomial in descending order 9x2-1

Answers

The factored expression of 9x^2 - 1 is (3x -1)(3x + 1)

How to factor the polynomial?

The polynomial expression is given as:

9x^2 - 1

Express 9x^2 as a perfect square

(3x)^2 - 1

Apply the difference of two squares

(3x -1)(3x + 1)

Hence, the factored expression of 9x^2 - 1 is (3x -1)(3x + 1)

Read more about factoring at:

https://brainly.com/question/19386208

#SPJ1

Any math wizzes up for this? First to answer correctly with explanation gets the brainliest

Answers

Step-by-step explanation:

−x

4

+(4×23)x

3

x+

x

10

−5

2 Simplify 4\times 234×23 to 9292.

-{x}^{4}+92{x}^{3}x+\frac{10}{x}-5−x

4

+92x

3

x+

x

10

−5

3 Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}x

a

x

b

=x

a+b

.

-{x}^{4}+92{x}^{3+1}+\frac{10}{x}-5−x

4

+92x

3+1

+

x

10

−5

4 Simplify 3+13+1 to 44.

-{x}^{4}+92{x}^{4}+\frac{10}{x}-5−x

4

+92x

4

+

x

10

−5

5 Collect like terms.

(-{x}^{4}+92{x}^{4})+\frac{10}{x}-5(−x

4

+92x

4

)+

x

10

−5

6 Simplify.

91{x}^{4}+\frac{10}{x}-591x

4

+

x

10

−5

Done

Help ASAP Please with this math problem. Just look at the picture. ​

Answers

[tex] {( \sqrt{9)} }^{2} [/tex]

[tex] ={3}^{2} [/tex]

[tex] = 9[/tex]

[tex] {9}^ \frac{1}{2} [/tex]

[tex] = ({3}^{2} ) ^{ \frac{1}{2} } [/tex]

[tex] = 3 ^{1} [/tex]

[tex] = 3[/tex]

Ethan’s water bottle is 1/2 full. Olivia’s water bottle is 2/6 full. Who has a more filled water bottle?

Answers

Answer:

Ethan's

Step-by-step explanation:

Ethan's is 1/2 and Olivia's simplified to be 1/3.

Ethan needs only 2 to have a full bottle and Olivia need 3 to have a full bottle.

Need help on algebra b1
b-8 -53

Answers

Feed:

i would recommend you to put the correct statement of the question so people can understand it better but from what i get your trying to ask is that : b-8-53

Step-by-step explanation:

well i dont get what your trying to say or ask

Read the last sentence of "Ain't I a Woman?"
Obliged to you for hearing me, and now old Sojourner ain’t got nothing more to say.
Which best describes the effect of these words?
They remind the audience that Truth has had rich life experience and offers valuable wisdom.
They suggest that the audience has listened to and understood all of Truth’s reasons.
They inform the audience that Truth will not give another speech about women’s suffrage.
They encourage the audience to question Truth’s reasoning and the ideas she has put forth.

Answers

Answer:

They suggest that the audience has listened to and understood all of Truth’s reasons.

Step-by-step explanation:

Obliged to you for hearing me, and now old Sojourner ain’t got nothing more to say.

This Implies that she needs to say nothing more, because the truth was so blaringly obvious that everyone in the crowd understood it. It also implies that no better argument for her cause could be put forward, and none was needed.

The statement that most adequately recounts the impact of the given words is:  Option A: They remind the audience that Truth has had rich life experiences and offers valuable wisdom.

Effect of Words

From the story of "Ain't I a Woman?", we can see that Sojourner is a strong-headed woman that had gone through serious battles all her life in seeking equal rights of women.

Now, the last sentence from "Ain't I a Woman" given in the question exists to help tell the reader that Truth had encountered standard experiences in his life and as such it promotes useful understanding and ideas.

Finally, words used like "obliged" and "old" are descriptive words that help show us that she is a humble, and experienced person.

In conclusion, the correct answer is Option A.

Read more about effect of words at; https://brainly.com/question/14031409

7,574 divided 5 if u get it right ur my best friend

Answers

Answer:

Step-by-step explanation:

1514.8 can i get brainlis if correct

PLEASE HELP I REALLY NEED HELP

Answers

I’m not good with question like those, but I would say that it’s D, people are better at this then I am lol, good luck!

Answer:

Hi I am not sure but I think it is A

Which decimal is equivalent to
11/50

Answers

Answer:

0.22

Step-by-step explanation:

To get 11/50 converted to decimal, you simply divide 11 by 50.

0.22 is equivalent to 11/50

PLS HELP
52
Solve for 44.
4 = [?]
49°
44

Answers

Answer:

angle 4 (the exterior angle) = 101°

Answer:

101

Step-by-step explanation:

first , let angle 4 be x

then

x =52+ 49 (exterior angle of a triangle is equal to sum of opposite interior angles)

=101

hope this helps u

Can someone plzzzzz help!
Thank u
I will give brainlist!

Answers

Answer:

I think B

Step-by-step explanation:

15 more than three times a number is equal to 75.

Answers

Answer:

20

Step-by-step explanation:

Help now pleaseee
The ratio of blue marbles to red marbles in a bag is 2:3. In the same bag, the ratio of blue marbles to yellow marbles is 1.1. Which of the following statements is true?

There are less yellow marbles than blue marbles

There are less yellow marbles than red marbles

There are less blue marbles that yellow marbles

There are less red marbles than blue marbles

Answers

Answer:

There are less yellow than red

Step-by-step explanation:

2/3 = .6666666 blue to red

1/1 = 1 blue to yellow

Zoey had 3/4 of a pizza left after going to a local restaurant last night. Today she eats 1/3 of the remaining pizza for lunch. How much of the original pizza does Zoey have left now?

Answers

Answer:

half of the pizza is left

Step-by-step explanation:

1 ) three quarters are left = 75% of the original pizza

2) she eats one third of the pizza = 1/3 of 75

3) one third of the pizza is 25 %

4) 75-25 = 50

5) 50 is half of the pizza

An unconfined compression test was performed to determine the average strength of concrete cylinders (in psi). It is believed that the strength is approximately normally distributed with a standard deviation of 256 psi. A sample of 70 concrete cylinders was taken, and it was found that the average strength was 3000 psi. Find a 91% confidence interval for the true average strength of the concrete.

Be sure to:

• State the value for α.
• State whether you should use z or t and find the appropriate value. Round z-values to 2 decimals. Round t-values to 3 decimals.
• Find the confidence interval (to 2 decimals). State the parameter your confidence interval is for.
• Write a verbal interpretation of your confidence interval.

Answers

Answer:

Explained below.

Step-by-step explanation:

(1)

The confidence level is, 91%.

Compute the value of α as follows:

[tex]\text{Confidence level}\% =(100-\alpha \%)\\\\91% = 100-\alpha \%\\\\\alpha \%=100-91\%\\\\\alpha \%=9\%\\\\\alpha =0.09[/tex]

(2)

As the population standard deviation is provided, i.e. σ = 256 psi, the z value would be appropriate.

The z value for α = 0.09 is,

z = 1.69

(3)

Compute the 91% confidence interval as follows:

[tex]CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}[/tex]

     [tex]=3000\pm 1.69\cdot\frac{256}{\sqrt{70}}\\\\=3000\pm 51.71\\\\=(2942.29, 3057.71)[/tex]

(4)

The 91% confidence interval for population mean implies that there is a 0.91 probability that the true value of the mean is included in the interval, (2942.29, 3057.71) psi.

(3,2) and (-7,4) find slope

Answers

Answer:

The slope is -1/5

Step-by-step explanation:

Slope is y-y1/x-x1.

Therefore the slope is 2-4/3-(-7)=-2/10=-1/5.

Solve the inequality:
-12x + 5 < 41

Answers

the answer is x > -3

Answer:

x > -3

Step-by-step explanation:

I hope this helps have a wonderful day :)

Find x so that the triangle shown below is a right triangle.

Answers

i think its 7.5

Hopefully this helped

3y(2y+5) solve the problem

Answers

3y×(2y+5)

Multiply each term in the parentheses by 3y

3y×2y+3y×5

Calculate the product

6y²+3y×5

Now we do the same thing only different way

3y×2y

Multiply the numbers

6y×y

If  a term doesn't have an exponent , it is considered that the exponent is 1

6y^1×y^1

Multiply the terms with the same base by adding their exponents

6y^1+1

add the numbers

6y²

6y^2+3y×5×

calculate the product

6y²+15y

It's the same thing only different way ok

3y×5

Multiply the numbers

15y

answer: 6y²+15y

PLEASE MARK ME AS BRAINLIEST

you go to Shoprite and buy 10.6 pounds of chocolate at $1.50 per pound for hot chocolate and 13 pounds of turkey livers for dinner at $2.75 per pound. You withdraw the total amount.

Answers

Chocolate total = $10.59
Turkey total = 35.75


Total = 46.4

I have a 82.92 in anatomy class but I recieved a 60 percent on an exam.. what will this bring my grade to?

Answers

Answer:

-D

Step-by-step explanation:

Please answer the question

Answers

The answer would be b. $1500 because 12,500 x .03 would be 375 so you multiply 375 by 4 is 1500

Which table of values could be generated by the equation -10x+5y=15

Answers

9514 1404 393

Answer:

  see below

Step-by-step explanation:

I find it convenient to factor 5 from the equation and re-order the left side:

  y -2x = 3

This makes it relatively easy to see that the values in the left-most table will satisfy this equation.

__

If we look at the table values for x=2, where all the tables differ, we can easily find the one that works:

  1.  7 -2(2) = 3 . . . . this value works in the equation

  2.  0.5 -2(2) = -3.5 . . . . no

  3.  -1 -2(2) = -5 . . . . no

  4.  2.5 -2(2) = -1.5 . . . . no

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