Mathematics High School

Perform the indicated operations:



4−1−4
05−2
0810
−7
−11
22





4−1−4
0ab
0cd
−7
88
110


a =
, b =
, c =
, d =

Perform The Indicated Operations:4140520810711224140ab0cd788110a = , B = , C = , D =

Answers

Answer 1

Answer:

A= -40

B= 16

C= 40

D= 50

Step-by-step explanation:

Answer 2

The values of the matrix is a = -40, b = 16, c = 40, d = 50.

What is a matrix?

A matrix is an arrangement of numbers, expressions or symbols arranged in rows and columns as a rectangular array. These rows and columns define the size or dimension of a matrix.

For the given situation,

The matrix is

[tex]\left[\begin{array}{ccc}4&-1&-4\\0&5&-2\\0&8&10\end{array}\right] = \left[\begin{array}{c}-7&-11&22\end{array}\right][/tex]

The operation on matrix is

[tex]-8R2- > R2[/tex] and

[tex]5R3- > R3[/tex]

⇒ [tex]\left[\begin{array}{ccc}4&-1&-4\\0&-40&16\\0&40&50\end{array}\right] = \left[\begin{array}{c}-7&88&110\end{array}\right][/tex]

On comparing this equation with the given equation,

[tex]a=-40, b=16, c=40, d=50[/tex]

Hence we can conclude that the values of the matrix is a = -40, b = 16,     c = 40, d = 50.

Learn more about matrices here

https://brainly.com/question/12563637

#SPJ2

Related Questions

Is there anybody here good at medical terminology??? pls I need help on one of my questions.

Answers

Answer:

I could try.

Step-by-step explanation:

Arthur’s dinner bill totaled $13.72, before sales tax and tip.

Sales tax at the restaurant is 5.8%.
After sales tax, he left a 15% tip.
What was Arthur’s total bill, including sales tax and tip?
A.13.84
B.14.52
C.15.78
D.16.70

Answers

Answer:

16.70

Step-by-step explanation:

i am sure this is the correct answer 100 percent sure

the answer is D) 16.69

PLEASE HELP WITH MY MATH ON MY PAGE/ACCOUNT

Answers

Answer:

what you need help with

Step-by-step explanation:

Jacques wants to make up packs of $0.45 comic books mixed with $0.75 ones to sell at $9.00 per pack. The number of $0.45 comic books is 4 more than the number of $0.75 comic books. Find the number of each type in the pack.

Answers

Answer:

The number of each type in the pack is 5 of $0.45 comic books and 9 of $0.75 comic books

Step-by-step explanation:

A system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.

Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are satisfied.

In this case, the unknowns or unknown variables are:

x: number of $ 0.45 comic books

y: number of $ 0.75 comic books

Jacques wants to make up packs of $0.45 comic books mixed with $0.75 ones to sell at $9.00 per pack.  Then the equation that represents this situation is:

x*0.45 + y*0.75= 9

On the other side, the number of $0.45 comic books is 4 more than the number of $0.75 comic books.  Then the equation that represents this situation is:

x+4=y

The system of equations to solve is:

[tex]\left \{ {{x*0.45+y*0.75=9} \atop {x+4=y}} \right.[/tex]

One way to solve a system of equations is the substitution method, which consists of solving one of the unknowns in one of the equations and substituting its value in the next.

In this case we directly replace the expression of the variable and of the second equation in the first:

x*0.45 + (x+4)*0.75= 9

Solving:

x*0.45 + 0.75*x + 4*0.75= 9

1.2*x + 3=9

1.2*x= 9-3

1.2*x= 6

x= 6÷ 1.2

x=5

Replacing this value in the expression x+4=y you get:

5 +4=y

9=y

The number of each type in the pack is 5 of $0.45 comic books and 9 of $0.75 comic books

There are places in the world where the forests have been destroyed and trees no longer grow. What needs to take place for a forest to be a renewable resource?



what is the answer?

Answers

Reforestation must take place if forests have been destroyed.

Afforestation is creating new forest where non had existed before.

Answer:

Reforestation must take place if forests have been destroyed.Afforestation is creating new forest where non had existed before.

Step-by-step explanation:

I NEED HELP PRONTO!! THIS IS FOR A MIDTERM!!!!


The Johnson and Sloan families went to Taco Mania for lunch. The Johnsons bought 3 burrito meals and 4 taco meals for $48. The Sloans bought 6 burrito meals and 2 taco meals for $60. How much does each meal cost?

Answers

Answer:

Each burrito meal cost 8$

Each taco meal cost 6$

Step-by-step explanation:

Johnsons= 3b +4t =48

Sloans= 6b+2t=60

multiple johnsons by -2

so, now the johnsons are -6b+-8t=-96

add that to the sloans so, -6b+6b-8t+2t=-96+60

the b's cancel eachother out, so you are left with -6t= -36

divide each side by -6 and you will get t=6

then you can pick either formula, lets say sloans this time

so, 6b + 2(6)=60 so, 6b+12=60, subtract 12 from each side, to get 48

so 6b=48, divde each side by 6 and you will get b=8

Step-by-step explanation:

Answer:

Tacos-6

Burritos-8

Step-by-step explanation:

Multiply the first equation by -2,and multiply the second equation by 1.

−2(3b+4t=48)

1(6b+2t=60)

Becomes:

−6b−8t=−96

6b+2t=60

Add these equations to eliminate b:

−6t=−36

Then solve−6t=−36for t:

−6t=−36

−6t

−6

=

−36

−6

(Divide both sides by -6)

t=6

Now that we've found t let's plug it back in to solve for b.

Write down an original equation:

3b+4t=48

Substitute6fortin3b+4t=48:

3b+(4)(6)=48

3b+24=48(Simplify both sides of the equation)

3b+24+−24=48+−24(Add -24 to both sides)

3b=24

3b

3

=

24

3

(Divide both sides by 3)

b=8

Answer:

b=8 and t=6

A quantity with an initial value of 380 decays exponentially at a rate of 1% every 4 hours. What is the value of the quantity after 174 minutes,

Answers

Answer:

377.24

Step-by-step explanation:

Mike is a cashier. He works 35 hours and is paid a total of £217
What is Mike's hourly rate of pay? (2 marks)
Your answer

Answers

Answer:

Answer vary :

Mike is paid $6.20 per 1 hour.

Step-by-step explanation:

honestly in my opinion that’s the answer.

‘what is happening is we need to find out how much he is paid for only one hour.

knowing that mike is paid 217 in 35 hours we divide

- 217 divided by 35 = 6.2

and that’s the answer to check if it’s right we multiple 6.2 by 35

- 6.2 times 35 = 217

wich shows it is correct.

and that is how I came to that solution.

Sarah is decorating her house for Christmas with lights. She wants to surround a circular window with special LED lights that makes a pattern. The window has a diameter of 18 inches. How long must the the string of lights be in order to surround the entire window?

Answers

Answer:

56.57 inches

Step-by-step explanation:

If Sarah wants to surround her circular window, she wants to cover the circumference of the window

The formula for calculating circumference of a circle = Dπ = 18 x 22/7 = 56.57 inches

what are two fractions that equal -7/10?

Answers

Answer:

-14/20

-21/30

Step-by-step explanation:

-7/10

-7x2=-14 and -10x2=-20

-14/20

-7/10

-7x3=-21 and -10x3= -30

-21/30

Which expression is equivalent to (6 * p ) + 3? *

Answers

Answer:

What are the other choices

Step-by-step explanation:

in a box of doughnuts, 4/7 of the doughnuts are chocolate and the rest are filled with jam. what is the ratio of chocolate doughnuts to jam doughnuts

Answers

the answer to the question is 4:3

A pet store owner, Byron, needs to determine how much food he needs to feed the animals. Byron knows that he needs to order the same amount of bird food as hamster food. He needs four times as much dog food as bird food and needs half the amount of cat food as dog food. If Byron orders 600 packages of animal food, how much dog food does he buy? Let b represent the number of packages of bird food Byron purchased for the pet store.

Answers

Answer:

300 bags of dog food

Step-by-step explanation:

4b + 2b + b + b = 600

(dog) + (cat) + (bird) + (hamster) = 600

8b = 600

b = 75

Byron purchased 75 bags of bird food. He needs 4 times that of dog food. So, he purchased 300 bags of dog food.

In a student election, Derrick got 10% of the votes. If Derrick got 5 votes, how many total students voted?

Answers

Answer:

50 students voted

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

If 50 students voted, or 1/10th of students voted for him, than you can multiply 5 by 10 to get your answer, which equals 50.

Cara monitors a snail in her aquarium. She notes that this morning it crawled 1 inch up the glass. A few hours later it crawled another 2 inches up the glass. Later it crawled 4 inches down the glass. How far is the snail from where it started?

Answers

1" below where it started

The equation needs to be fully factored and I need some help

Answers

Answer:

4y^2(y+4)(y-4)

Step-by-step explanation:

Answer:

[tex]4y^2(y+4)(y-4)[/tex]

Step-by-step explanation:

Factor [tex]4y^2[/tex] out of the equation

[tex]4y^2(y^2-16)[/tex]

Rewrite 16 as [tex]4^2[/tex]

Factor.

[tex]4y^2(y+4)(y-4)[/tex]

hope this helps :)

PLSSSSS HELPPP

Question : If you are given the decimal division problem 7.89 ÷ 3 and find that the answer is 2.63, how can you use multiplication to check that your answer is correct? (What numbers would you have to multiply together?)

Answers

Do 2.63 x 3 to check ur answer

Determine if the system has no solutions, one
solution, or infinitely many solutions.
y = 3x
y = 3x - 1

Answers

Answer:

no solutions

Step-by-step explanation:

they will be parallel cuz same slope but diff y-intercepts

Answer: no solution

Step-by-step explanation:

I think because their parallel to eachother

8. A square has side length 6 inches. A parallelogram has a base of 6 inches.
The area of the square is equal to the area of the parallelogram. What is the
height of the parallelogram?

Answers

Answer:

6?

Step-by-step explanation:

umm. maybe im wrong but 6 x 6 is thirty six so im pretty sure its 6.

Please help. Need to find the equation of the tangent at point P. Give your answer in the form y=ax+b where a and b are both fractions with denominator 24. ​

Answers

Answer:

y=7/24x+625/24

Step-by-step explanation:

-7x+24y=-25"2

-7x+24y=625

+7x            +7x

24y=7x+625

divide 24

y=7/24x+625/24

Got this for my mathswatch too

The expression 3(-2m + 5) - 6(-4m - 2) can be written in the form am + b. What is the value of a + b?

Answers

Answer: 45

Step-by-step explanation:

3(-2m + 5) -6(-4m - 2) =

-6m + 15 + 24m + 12=

18m + 27

18= a 27= b 27 + 18= 45

The value of the expression a + b is 45.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

First, we can simplify the expression using the distributive property:

3(-2m + 5) - 6(-4m - 2) = -6m + 15 + 24m + 12

Combining like terms, we get:

18m + 27

So, a = 18 and b = 27, which means:

a + b = 18 + 27 = 45

Therefore,

The value of a + b is 45.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ3

What is the slope that is parallel to -2x + 7y = 12?

Answers

Answer:

I love math anyways

The ans is in the picture with the steps how i got it

(hope it helps i plz have brainlist :D hehe)

step-by-step explanation:

Two friends shop for fresh fruit. Jackson buys a watermelon for $6.45 and 4 pounds of cherries. Tim buys a pineapple for $4.25 and 3 pounds of cherries. Use the variable p to represent how much more Jackson spent.

Answers

Your answer is 6.45+ p = 6.45p

Mental math Solve the equation n/10+5=12

Answers

Ok so n=70, I hope it’s right:)

Student tickets cost $5.75 each, and adult tickets cost $8.50 each.
Which equation can be used to find the total cost c of any number
of adult tickets t?

Answers

Answer:

c=8.5t

Hope this helps!

Multiply. Enter the product in simplest form.
uIN
=
9/10 multiplied 2/5

Answers

Answer:

When multiplying fractions, multiply the top number by the top number, and the bottom number by the bottom number.

So we have: (9x2)/(10x5).

This simplifies to: 18/50, or 9/25.

Let me know if this helps!

HELLLLP MEH, WILL MARK BRAINLIEST, NEED ALL Q'S ANSWERED

Answers

Answer:

1. is 4

2. is 3

3. is 10

4. is 13

Step-by-step explanation:

Hope this helpss!!

You are running the concession stand at a volleyball game, selling hot dogs and cans of pop. Each hot dog costs $1.50 and each soda costs $0.50. At the end of the night you have made exactly $78.50. You know that you have sold exactly 87 items, but cannot remember how many of each. That mean PTA lady will never let you work the concession stand again if you don’t report the correct number of each item sold! How many of each did you sell?

Answers

Answer:

Hot Dogs: 35

Soda: 52

Step-by-step explanation:

35 hot dogs + 52 sodas is 87 items.

35 x $1.50 = $52.50

52 x $0.50 = $26.00

$52.50 + $26.00 = $78.50

What two numbers are located 3/4 of a unit from 1/10 on a number line?

Answers

Answer:

it's A cus i made a good grade so A is the right answer

b) Convert 280 millilitres to fluid ounces.
Use 1 fluid ounce = 28.4 millilitres
Give your answer to 1 decimal place.

EASY

Answers

Answer:

9.8 sorry if it's wrong but it's the closest I can get

It is 9.9 to 1dp as the number is 9.859…
And rounding that gives us 9.9
Other Questions
How do you think they helped the Incan rulers to maintain their vast empire? True or False The Great Rift Valley in Africa was created by a series of tectonic faults and is characterized by volcanic mountains, escarpments, and lakes. True False please help me someone with this problem Graph the line with the given slope that passes through the given point Slope=2;(-1,4) Pls check my answers i dont know if theyre correct state andprove angleanglesum property of triangle Angle A and B are supplementary. I mA = 143, find mBI don't understand the question. A recipe uses 5 cups of milk to make 20 servings. If the same amountof milk is used for each serving, how many servings can be made fromtwo pints?1 gallon 4 quarts1 quart 2 pints1 pint 2 cups1 cup = 8 fluid ouncesBefore you try that problem, answer the questionbelow.How many cups will you need to find the numberof servings for? Progress:Simplify the expression to a polynomial in standard form:(3x + 5)(2x2 2x 1)Answer:Submit Answer Find the volume of a cylinder with a radius of 3 cm and a height of 7 cm. Round to the nearest hundredth. What is an equation of the line that passes through the points (5,4) and (2,-2)? What the phrase the eleventh hour of the eleventh day of the eleventh month mean? What are the two ways nitrogen gas is turned into a form plants and animals can use?A: Lightning and WormsB: Lightning and BacteriaC: Bacteria and WormsD: Bacteria and Fungi the impact the North Atlantic Drift has on the fishing industry in north -western Europe. Let me know thank you A^3=5 b^3=4 Find value of (ab^2)^-3 A trapezoid has an area of 40 square feet. It also has a base of 6 feet and 10another base of 4 feet. What is the height?" Listen and choose the right option.Based on the audio, what outfit is Paola describing? Her sports uniform Her school uniform A Colombian dress A Costa Rican dress please write a GREYS ANATOMY thesis statement. PLEASE :) Andrea had $43.50 to spend on groceries. After buying 4 boxes of cereal, she had $27.70 left. If each box of cereal costs the same amount, what is the price of one box of cereal.