Mathematics High School

Which property is shown In the matrix addition above?

A. Inverse Property
B. Identity Property
C. Commutative Property
D. Associative Property

Which Property Is Shown In The Matrix Addition Above? A. Inverse PropertyB. Identity Property C. Commutative

Answers

Answer 1

Answer :

Identity Property.

Step-by-step explanation:

Two matices are given to us , which are ,

Let A = [tex]\left[\begin{array}{ccc} 6 & -8 & 1 \\ 0 & -2 & -19 \end{array} \right] [/tex] .

Let B = [tex]\left[\begin{array}{ccc} 0 & 0& 0 \\ 0 & 0 & 0 \end{array} \right] [/tex] .

Here since all the elements of Matrix B are 0 , its a null matrix . Hence adding any matrix to it will give the same matrix which is added . This property is called as Identity Property .

Adding both A and B ,

[tex]\implies A + B = \left[\begin{array}{ccc} 6 & -8 & 1 \\ 0 & -2 & -19 \end{array} \right] + \left[\begin{array}{ccc} 0 & 0& 0 \\ 0 & 0 & 0 \end{array} \right] [/tex]

[tex]\implies A + B = \left[ \begin{array}{ccc} ( 6+0) & (-8+0) & (1+0) \\ (0+0) & (-2+0) & (-19 + 0 ) \end{array}\right] [/tex]

[tex]\red{\implies A + B = \left[\begin{array}{ccc} 6 & -8 & 1 \\ 0 & -2 & -19 \end{array} \right] }[/tex]

Hope it helped !

Answer 2

Answer:

b. identity property

Step-by-step explanation:

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Answers

Answer:

STOP SPAMMING I CAN THEKP YOU BRO I CSNT HELP U...

Step-by-step explanation:GIV EU BAD DAY

Select the correct answer.
Write (21 - 4) - (16 + 7) + 281 as a complex number in standard form.
A.
5+ 397
B.
5 + 177
Ос.
5-394
D.
5-17
Reset
solve as a complex number

Answers

(21-4)-(16+7)+281
(17)-(23)+281
(-6)+281
275
(21 - 4) - (16 + 7) +281 = 17 - 23 +281 = -6+281. I don’t see that answer. You sure you have the problem written correctly?

what is the square root of 27485.992521?

Answers

Answer:

My calculator says 165.789

a flomming tile has the shape of a parallelogram whose base is 24cm and height is 10 cm how many tiles are required to cove the floor of area 1080m2

Answers

Answer:

4 1/2 tiles are needed to cover this area

Step-by-step explanation:

Mathematically, the area of a parallelogram is the product of the base and the height

We have this as;

24 * 10 = 240 cm^2

So the area of a tile is this

The number of tiles that will cover the given area will be;

1080/240 = 4.5 tiles

HELP WILL MARK YOU BRAINLIEST

Answers

9514 1404 393

Answer:

  JL = 9√13

Step-by-step explanation:

All of the triangles in this geometry are similar:

  ∆MKL ~ ∆MLJ ~ ∆LKJ

Corresponding sides of similar triangles are proportional, so you can write the relations ...

  JL/JM = JK/JL   ⇒   JL² = JM·JK

  LM/JM = KM/LM   ⇒   LM² = JM·KM

Using the second expression to find JM, we have ...

 JM = LM²/KM = 18²/12 = 27

We know that JK = JM +KM. Then the first expression can be ...

  JL² = 27·(27 +12) = 9²·13

  JL = 9√13

Drivers with a Downtown Employee Discount card receive a discount at some parking garages and lots. Is there a number of hours for which the discounted cost of parking at First Street Parking and AAA Garage is the same? Explain.

Answers

Answer:

Anybody got an answer I need it asap.

Step-by-step explanation:

the cost of 7 toys is AED 294. the cost of 5 toys. (Unitary method)

Answers

Answer:

AED 210

Step-by-step explanation:

If the cost of 7 toys is AED 294, this is written as;

7 toys = AED 294

To get the cost of 5 toys, this is written as;

5 toys = x

Divide both expressions

7/5 = 294/x

Cross multiply

7x = 5 * 294

7x = 1470

x = 1470/7

x = 210

Hence the cost of 5 toys is AED 210

20n^2+3n=12n^2+4
identify a,b,c​

Answers

Answer:

a)  a=8,  b=3,  c=-4

b) (-3 + [tex]\sqrt{137}[/tex])/16, (-3 - [tex]\sqrt{137}[/tex])/16)

c) roots in decimal form are 0.54 and -0.92

Step-by-step explanation:

a) 8n² + 3n - 4

b) (-3±[tex]\sqrt{9+128}[/tex]) ÷ 16

Help!!!!!!! Once again this is a review!!!!!!! Question is on image below. 50 points + brainliest!!!!!!

Answers

Answer:

82

Step-by-step explanation:

It is lets then 90 but not by much

A cheese maker changes the temperature of his milk at a rate of -3°F per minute. What is the change
in the temperature of the milk after 15 minutes?

Answers

Answer: -45°

Step-by-step explanation: This is because if it changes -3°F every minute and there are 15 minutes, just do 15*-3. In this case, is -45°

The additive inverse of -7/9

Answers

7/9 is the answer. no real explanation but yeah :)

Math
Help

Please helppp it’s math

Answers

Answer: C

Step-by-step explanation:

She is in the hole 8.10 and she makes 6.50

-8.10 + 6.50

Answer:

-8.10 + 6.50

Yolanda made $242 for 11 hours of work. At the same rate, how many hours did she have to work to make $198.

Answers

His hourly rate is:

242/11=22 dollars

( dollars/hour ) x ( hours worked ) = dollars earned

Let t= hours worked

22t+=198

t=198/22

t=9

Yolanda needs to work 9 hrs

What percent of 80 is 45? Round to the nearest whole percent.​

Answers

Answer:

36

Step-by-step explanation:

80% of 45 is 36.

Have a FANTASTIC FRI-YAY!

Circle P has radius 6, and circle O has circumference 36π. What is the scale factor of the dilation that transforms circle P into circle O?

Answers

Answer:

thanks

Step-by-step explanation:

I don't understand this problem. will look at and edit my answer if get it.

A snow storm has blown across the united states. Currently, 30k square miles of land are affected. Each day, the land increases by 30% Equation: How much will the be hit by the snowstorm after 5 days?​

Answers

Answer:

50,000 Square Miles.

Step-by-step explanation:

30% = 1/3

30,000/1 * 1/3 = 10,000

10,000 * 5 = 50,000

If this question helped pls give me brainliest :) have fun

Inverse trigonometric ratios
​

Answers

Answer:

Step-by-step explanation:

First we go to find the length of ZXNotice that the angle of 25 degrees is opposite of the side length of 15 and ZX is what were trying to find.Set up the equation sin25=15/xNow move the 15 to the other side, x*sin25=15now use your calculator to find x=35.4930238935now find angle x( the triangle on the right)notice that we the the side opposite to as 22 and the adjcent as 35.4930238935,we can use the tangent function to find the angleset up the equation tanx=22/35.4930238935tanx=0.619840114666x=tan^-1(0.619840114666)x=51.69554°now know that a triangle has a total of 180 degrees, now we have the two angles we can make a equation for W to find the angleW+51.69554+90=180W+51.69554=90W=38.30446So the final Answer is m of W = 38.30446 degrees.

What is the value of the expression below?

8^1/3

A. 4
B.8/3
C.2/3
D. 2.

Answers

The answer is 2. The power of 1/3 represents the cube root of a number. 2 multiplied by its self is 8.

Answer:

Step-by-step explanation:

8=2^3 so

(2^3)^(1/3)

2^(3(1/3))

2^1

2

3,111 x 6.5 plz i need it by tuesday

Answers

Answer:20221.5

Step-by-step explanation:

Answer:

20221.5

Step-by-step explanation:

Which of the following refers to the operation of addition?

Answers

tell me the options in the comments

Write a second equation whose graph goes through (0,1) so the system has no solutions.

Answers

Answer:

y = 5x + 1

Step-by-step explanation:

Hello There!

Equations that have no solutions are parallel

So the line we are going to create an equation for has the same slope as the line drawn  

To find the slope we do change in y divided by change in x

as y goes 5 x goes up 1

so the slope is 5/1 or 5

The requirements for the equation is it has to go through the points (0,1)

The ordered pair listed is the y intercept so the equation would be

y = 5x + 1

PLZZZ HELP 100 POINTS
In the figure below, AD and CE are diameters of circle P.
What is the arc measure of minor arc AB in degrees?

Answers

Answer:

55 degrees

Step-by-step explanation:

this one is easy because the opposite side of 93 degrees is 93 degrees. so all you have to do is this

93-38=55

your AB angle is 55 degrees

hope this helps! have a nice day!

Answer:

180 degrees

Step-by-step explanation:

The minor arc is an arc that subtends an angle of less than 180 degrees to the circle’s center.

Hope this helps you :)

Sam and Ella were running in a race. Sam ran ⅞ of a mile and Ella ran 5/10 of a mile. At the end of the race they wanted to compare how far they ran. Ella said they could compare the fractions by comparing each fraction to ½. Show how Ella could compare 5/10 and ⅞ to ½ . Then explain who ran further and how you know.

Answers

Answer:

ELLA

Step-by-step explanation:

Given that :

Distance covered by Ella = 5/10

Distance covered by Sam = 7/8

Comparing each distance to 1/2

Ella = 5/ 10 = 1/2 ; 1/2 = 1/2 = 0.5

Sam = 7/8 = 0.875 ; comparing with 1/2

0.875 > 0.5

Given

Sam ran farther Than ELLA

Because 0.875 > 1/2

0.875 - 0. 5 = 0.375

help please asap!!!!​

Answers

Answer:

-8a - 6b

Step-by-step explanation:

6a - 13b - 14a + 7b =

6a-14a = -8a

-13b + 7b = -6b

-8a - 6b

Which expression is equivalent to -24x + 30

Answers

the answer is -6(4x-5)


Timothy is a photographer for a modeling agency. His biweekly salary is $2,115.25. What are his annual
and monthly salaries.

Answers

25,383 that’s the answer

help? I will give you brainliest, if your answer was correct.

Answers

Answer:

B

Step-by-step explanation:

Answer:

the answer is b

Step-by-step explanation:

got it right

6 = -4 + X


Random Question: What's your favorite subject

Answers

Answer:

x=10             US HISTORY :)

Step-by-step explanation:

6=-4 +X

+4  +4

X=10

Franky and Francesca applied to the same college. They looked up the average SAT score of students admitted to that college. Franky’s SAT score was 140 points above the average score. Francesca’s SAT score was 40 points below the average score. Which expression represents the difference in their scores?

❘-40 - 140❘
-❘140❘ - ❘40❘
-❘140❘ + ❘-40❘
❘140 - 40❘

Answers

It would be I140-40I
(So the last answer)
Hope this helped ^^

The angle of elevation from a kicker's foot on the football field to the top of the goal post is 17 degrees. If he is standing 131 feet from the base of the goal post, how tall is the goal post?​

Answers

Answer:

The goal post is 40.05 feet tall.

Step-by-step explanation:First, you need to decide whether to use sin, tan or cos.

You have the angle, the adjacent and need the opposite , so you need to find out which one has all three values in

Sin  

Cos  

Tan  

So you need to use tan.

Tan = opposite / adjacent, so rearrange the formula to make opposite the subject:

[tex]Opp = Tan * adj

So simply plug these values in:

[tex]Opp =131 * tan(17) = 40.05

So the goal post is 40.05 feet tall

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