Write a system of linear equations that has (-4, 8) as the solution. Once you have made your system of equations, solve it algebraically to show that you do indeed get the solution (-4, 8).

Answers

Answer 1

Answer:

See below

Step-by-step explanation:

(-4, 8) has to be the solution.

1st equation: -4x+8y = 1

2nd equation: 8x - 4y = 1

These should work. Do the matrix-substitution combo method to see:

-4  8  1

.8 -4  -1

Reduce and and matrix-substitution combo:

1 0 -4

0 1  8

The reduced eckerd form of the matrix shows that the solutions are (-4, 8)

Therefore it -4x + 8u = 1 and 8x - 4y = 1 are the two equations for the system.


Related Questions

Graph the linear function described by the equation
y = -3x - 2.
Step 1: Identify the slope and y-intercept.
slope =

Answers

The slope of given line is -3 and the y-intercept of the line is -2.

What is Straight Line?

A straight line is an infinite length line that does not have any curves on it. A straight line can be formed between two points also but both the ends extend to infinity.

Here, we know that slope intercept form of straight line;

            y = mx + c

Given equation;

          y = -3x - 2

compare this equation with general equation, we get

    m = -3 and c = -2

Thus, The slope of given line is -3 and the y-intercept of the line is -2.

Learn more about Straight line from:

https://brainly.com/question/27560536

#SPJ1

Answer:

Graph the linear function described by the equation

y=-3x-2

Step 1: Identify the slope and y-intercept.

slope =

Step-by-step explanation:

Is 60×60=3600
Ifvyou have a answer put it insid the chat box

Answers

Yes it is 60x60 is 3,600

Answer:yes 60 x 60 = 3600

Step-by-step explanation:

dont understandd helppp​

Answers

Answer:

y[tex]\leq[/tex] -12 or y[tex]\geq[/tex] -4

Subtract 6 from both sides 3|y+8|+6-6[tex]\geq[/tex]18-6Simplify 3|y+8|[tex]\geq[/tex]12 Divide both sides by 3Simplify |y+8|[tex]\geq[/tex]4Apply absolute rule y+8[tex]\leq[/tex] -4 or y+8[tex]\geq[/tex]4Combined the interval y[tex]\leq[/tex] -12 or y[tex]\geq[/tex] -4

y[tex]\leq[/tex] -12 or y[tex]\geq[/tex] -4:) Hope You Enjoy :) They are both real numbers :)

1 11/12 + 9/12
please help will give brainlest​

Answers

12x1= 12
12+ 11= 23

23/12 + 9/12 = 32/12 or 3 8/12

Can someone help me with this problem

Answers

Answer:

H and N

Step-by-step explanation:

ive been trying at this for an hour help plz?​

Answers

Answer:

[tex]x\geq -4[/tex]

Step-by-step explanation:

[tex]3x-9\geq-21[/tex]

add 9 to both sides

[tex]3x-9+9\geq -21+9[/tex]

[tex]3x\geq -12[/tex]

divide both sides by 3  

[tex]\frac{3}{3}x \geq \frac{-12}{3}[/tex]

[tex]x\geq -4[/tex]

Plot a solid dot on -4 on the number line because the inequality sign is great than or equal to and x the great than or equal to -4.

The arrow is then pointed to the left >>>>

PLEASE HELP I NEED THIS

Michael read 14 books in 26 months. At the same rate, about how many books can he read in 48 months?

Answers

Answer:

336/13 books in 48 months

Step-by-step explanation:

14 books : 26 months

first, find how many books he reads in one month (by dividing the given rate by the number of months)

14 books : 26 months

/26             /26

7/13 books : 1 month

now multiply by the number of months that this problem requires

7/13 books : 1 month

*48               *48

336/13 books : 48 months

please help 8th grade math

Answers

Answer:

[tex]n \geq -\frac{-29}{28}[/tex]

Step-by-step explanation:

[tex]-3(1 - 7n) \geq -32 - 8n\\-3 + 21n \geq -32 -8n\\[/tex]

       +8n               +8n

[tex]-3 + 28n \geq -32\\+3 +3\\28n \geq -29\\/28 /28\\n \geq \frac{-29}{28}[/tex]

Help needed ASAP will give brainliest (not a real test) will also rate 5 STARS

Answers

Answer:

that question is written wrong. you cant age the equation. speak to a teacher before answering.

Step-by-step explanation:

Answer:

y = 4x - 2

Step-by-step explanation:

First, let's find the slope of the equation. If you take a look at the table of values, as x goes up by 1, y goes up by 4. This means the slope is 4. To find the y-intercept, look where x = 0. When x = 0, y = -2.

In conclusion, the equation is:

y = 4x - 2

Which situation is best represented by the following equation?

45w + 123.95 = 753.95


Erica paid $753.95 for dance classes. She paid a $123.95 registration fee and $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?

Erica paid $753.95 for dance classes. She paid a $45 registration fee and $123.95 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?

Erica and her sister paid $753.95 for dance classes. Erica paid $123.95 for each week she was enrolled in the classes, and her sister paid $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica and her sister were enrolled in dance classes?

Erica paid $753.95 for dance classes. She paid $123.95 for each week she was enrolled in the classes after using a coupon that gave her $45 off the price per week. What is w, the number of weeks Erica was enrolled in dance classes?

Answers

Answer: The first one.

Write the first four terms of sequence f(n) = n ^ 2 + 2n + 5

Answers

f(n)= n^2+2n+5
f(4)= 4^2+2(4)+5
f(4)= 16+8+5
f(4)= 29

A KIDZ society started a campaign "Plant the Plants " . They bought 750 saplings and wanted to arrange the maximum possible number of 750 saplings in a ground such that the number of rows is equal to the number of saplings in each row .Find the number of rows if 21 saplings were left out after the rearrangement .

Answers

Answer:

Three are 27 rows of saplings

Step-by-step explanation:

Since 21 saplings were left out of 750 saplings, the number of saplings arranged will be 750 -21 = 729 saplings

We were told that the number of saplings arranged per row is equal the number of rows

So let’s say the number of saplings arranged per row is x

Automatically, the number of rows too will be x

So the total number of saplings arranged will be;

x * x = x^2

This is equal to 729

x^2 = 729

x^2 = 27^2

Since power is equal, equate the base

This means that x = 27

I NEED THIS ASAP:
Apply the distributive property to: 45x - 15y + 9z.

Answers

Answer:

15x-5y+3z

Step-by-step explanation:

I divided everything by three.

Answer: 15x-5y+3z

Step-by-step explanation:

you’re supposed to divide everything by 3 and you’ll get the answer. 45/3=15 15/3=5 and 9/3=3. I hope that helped you.

If fx)= 6x-4, what is fx) when x= 8"
A 2
B 16
C 44
D 52​

Answers

Since x = 8, you would need to plug in 8 into the x.

f(x) = 6x - 4

f(x) = 6(8) - 4

f(x) = 48 - 4

f(x) = 44

So, the correct answer would be C. 44

Jeremiah's dog eats 5/8 of a can of food each day. Jeremiah currently has 2 1/2 cans of dog food. How many days will the current supply of dog food last?

Write your answer as a fraction or as a whole or mixed number.

Answers

Answer:

yes

Step-by-step explanation:

Nadia and some friends went to a movie. Their total cost was $30.24 which included fasted of 2.24 write an algebraic expreeeion to represent the price of each movie ticket not including tastes. Let x represent the number of nature friend who went to the movies. Y’all please help lol I’m so stressed

Answers

Answer:

You can put this solution

30.24 - 2.24 = $28 just tickets

 

$28/x = $/person

or

(30.24 - 2.24)/x

Step-by-step explanation:

what’s the value of (sin90+cos360)-tan180

Answers

Answer:10

Step-by-step explanation:

f(x)=9

Answer:

-0.72838463823

Step-by-step explanation:

1a) The sin of 90 is 0.8939966636

1b) The cos of 360 is -0.28369109148

1c) The tan of 180 is 1.33869021035

2) When you add sin90 and cos 360 you get 0.61030557212

3) When you subtract tan180 to what we currently have we will get -0.72838463823, and that is your answer.

Which division problems below have the same quotient as –27 ÷ 9?
A
. 3 ÷ 1
A. 18 ÷ (–6)
B.–6 ÷ –2
C. 27 ÷ (–9)
D. –15 ÷ –5
E.–9 ÷ 3

Answers

Answer:

[tex]27 \div ( - 9)[/tex]

please mark me brainliest

Given the equation ay + bx - c = 0, solve for the variable c.
CE

Answers

Answer:

Hello! This link should have your answer in it! :

Step-by-step explanation:

yt,vqqu0QYBGJ8

Help! What is 3.50 +4.50

Answers

Answer:

8

Step-by-step explanation:

The answer is 8.00 hope this helps

Anyone know the answer to this question

Answers

Answer:

The relation is a function because there isnt a repeating y

Answer:

y= -3x

Step-by-step explanation:

Which expression is equivalent to 3(5f)?

Answers

Answer:

15f

Step-by-step explanation:

distribute the 3 and you get 15f :)

Answer:

I believe it would be the first one :)

Step-by-step explanation:

What is the domain of the given function?
{x | x= -6, -1, 0, 3}
{yly=-7, -2, 1, 9}
{xx = -7, -6, -2, -1, 0, 1, 3, 9}
{yl y = -7, -6, -2, -1, 0, 1, 3, 9}

Answers

Easy buddy....

_________________________________

Remember, from now on, wherever the function domain is asked

They mean the same inputs or xs of the function.

Now you can answer them yourself but I like to help you to do it buddy.

_________________________________

The first function's domain is :

D = { -6 , -1 , 0 , 3 }

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

The second function's domain is :

D = { -7 , -6 , -2 , -1 , 0 , 1 , 3 , 9 }

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Which fraction is equivalent to 0.018 ? there is a top enclose above 18 so, please help me with that ! thank you so much.

Answers

Answer:

9/500

Step-by-step explanation:

-6(5.7)=
please help

Answers

Answer:

-34.2

Step-by-step explanation:

when u multiply those 2 numbers, it makes -34.2

Answer: G = 35.2

Step-by-step explanation: G - 6 x 5.7 = 1

G - 34.2 = 1

G = 1 + 34.2

G = 35.2

G = 176/5 , G = 35 1/5

Can someone help with the last 2?

Answers

Answer:

x > 6 and x ≤ 10

Step-by-step explanation:

You have to sleep for more than 6 hours, which means it is greater than and can not be equal to because it has to be more than 6 hours.

For the second problem, at most includes the 10th person so x is less than or equal to 10.

Hope this makes sense!!

Answer:

1. x > 6

2. x <= 10

Step-by-step explanation:

1. You want to sleep for more than 6 hours. If x equals amount of sleep, then x should be greater than 6.

2. You want at most 10 ppl. So, It can be equal to ten or less than ten ppl in the room.

3-8
18
Which expressions equivalent to
Select all that apply.
1
A
34
1
B
312
C 3-4
D 32
E
1
32
F 3-12

Answers

Answer:

A and C

Step-by-step explanation:

When you are dividing exponents you subtract. So for this problem -8 - -4 = -8 + 4 = -4. This means that the new exponent would be -4.

When you have a negative exponent, the equation is a fraction. As an example x^-5 would be equal to 1/x^5. For this equation, since you know that the new exponent is -4, an equivalent equation would be 1/3^4.

Hope this helps

Can anyone able to solve this.​

Answers

Answer:

Answer in the attachment

Step-by-step explanation:

Cut off both semicircles at the top and bottom.

stuck on the question​

Answers

Answer:

8

Step-by-step explanation:

By the corresponding angle theorem, we can find that:

17x - 4 = 12 + 15x

Now to find the value of x, we can just solve for x in the equation that we found.

17x - 4 = 12 + 15x

Subtract 15x from both sides.

2x - 4 = 12

Add 4 to both sides.

2x = 16

Divide both sides by 2.

x = 8

So we found that x = 8. So the value of x would be 8.

I hope you find my answer and explanation to be helpful. Happy studying.

IF YOU ANSWER MY QUESTION CORRECTLY AND THE FASTEST, I WILL GIVE YOU FREE BRAINLIEST, BUT BEWARE, COPY N PASTERS WILL BE DISQUALIFIED. HERE IS THE QUESTION, "WHO LIVES IN A PINEAPPLE UNDER THE SEA?"

Answers

Answer:

SPONGEBOB SQUAREPANTS

Step-by-step explanation:

Other Questions
How does Newtons second law apply to golf Two-thirds of the students in Harrys math class and three-fifths of the students in Amanis math class are boys. Which question about the classes is best modeled with a division expression?A If there are 12 boys, how many students are in Harrys class?B If there are 24 students, how many boys are in Amanis class?C What fraction of the students in Harrys class are girls?D What fraction of the students in Amanis class are honors students if the fraction is equal to StartFraction 5 Over 4 EndFraction the fraction of students who are boys? Write an equation of the line that passes through the points (-9,-6) and (-8,1) A(n) warrior king came to power and united the clans of France.The Kingdom of France began in 987 CE after was crowned.Laws of primogeniture ensured that would inherit titles and power. (1/4w+8)+8=3the 1/4 is a fraction In Bogot D.C., the D.C. stands for: Distrito CapitalDistrito de ColombiaDemocracia de ColombiaDe Colombia find the quotient 4/7 divided by 1/5 Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II) nitrate are mixed. what is the measure for the following angle?AOC What did the Pine Ridge Indian Agent want in the fall of 1890? Question 7 of 10Which is the root word of lyricalA. Lyros, which is a mythical Greek islandB. Lyra, which is an ancient unit of currencyC. Lyre, which is a type of musical instrument.D. Lyrium, which is a type of flowerSUBMIT 14. If a British troop killed a colonist, how would the king protect him?HELP The ancestors of plants that lived in water had plenty of water for the young. Angiosperms are a group of land plants that evolved a reproductive trait for living on land. This trait helps protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right.I WILL GIVE BRAINLIESTWhat trait most likely helped young angiosperms in this way?cuticlesseedsvascular tissuesphotosynthesis Somebody help me this is on my final and I dont wanna fail it please somebody help me Steve is buying apples for the fifth grade. Each bag holds 12 apples. If there are 68 students total, howmany bags of apples will Steve need to buy if he wants to give one apple to each student?Steve will need to buybags. What is the predicate noun in I am very cold today. help me, please cause I'm stuck The respiratory system is made up of the airways, lungs, and respiratory muscles. The lungs are classified as cells.tissues.organs.organisms.pills and potions...bts promotions...Im angry but I still love anime The graph models a weight bobbing up and down on a spring. How far does the weight travel, going from maximum displacement to minimum displacement? O2 inches O4 inches 6 inches O12 inches find the equation of the line with a slope of -2 that passes through the point (4,-3)