Use Guauss-jordan elimination to solve the following linear system.
5x - 2y = -2
-x + 4y = 4

Answers

Answer 1

Answer:

wdym

Step-by-step explanation:


Related Questions

Kei buys a table and 12 chairs. Each chair cost the same price. The table cost $165. The total cost for the table and 12 chairs is $ 465. What is the cost of one chair?

Answers

Answer:

[tex]165 + 12c = 465[/tex]

Is the right answer

Answer:$25 per chair

Step-by-step explanation:

It’s $165 for only the table. Minus that from the $465 and you get $300. Do $300 divided by 12(amount of chairs) And you get $25. It’s $25 per 1 chair.

The radius of a circle is 18 inches. What is the circle's area?

Answers

Answer:

1017.88 inches

Step-by-step explanation:

Area = πr2 = π x 182 ≈ 1017.87602

What is the domain of the function shown in the graph below?

Answers

The domain of the function graphed in this problem is given as follows:

(-∞, -1) U (-1, ∞).

How to obtain the domain and range of a function?

The domain of a function is defined as the set containing all the values assumed by the independent variable x of the function, which are also all the input values assumed by the function.The range of a function is defined as the set containing all the values assumed by the dependent variable y of the function, which are also all the output values assumed by the function.

The vertical asymptote of the rational function graphed in this problem is given as follows:

x = -1.

Hence the function is defined for all real values except x = -1, meaning that the domain is given as follows:

(-∞, -1) U (-1, ∞).

Learn more about domain and range at https://brainly.com/question/26098895

#SPJ1

what does 5 × 100 equal​

Answers

Answer: 500.

Step-by-step explanation:

Your answer is 500.

Find the next term in the sequence 3, 6, 9, 15, 24,

Answers

39, it is like the fibonacci sequence you take the 2 previous numbers and add them together to get the next number.

A picture of Margo's garden is shown below. It is made of 2 rectangular prisms. She wants to fill it with dirt. She needs to find the volume of the garden to know how much dirt to buy.



9 cubic feet


10 cubic feet


98 cubic feet


107 cubic feet

Answers

Answer:

9 cubic feet

Step-by-step explanation: You multiply them all then divide 9 by the greatest number that fits in 107

What is the mode of the data set?

A. 90
B. No mode
C. 85.5
D. 49

Hurry and give a SERIOUS answer! Will give brainliest.

Answers

Answer:

mode is the number listed most often and data can have more then 1 mode

the numbers most listed in the image are: 5 and zero

Step-by-step explanation:

I hope this helped!

Answer:

90

Step-by-step explanation:

mode = A number that appears most often is the mode.


Please help really quick

Answers

Answer:

88 yd.²

Hope this helps!

Answer:

Area= 88 sq. yd.

Step-by-step explanation:

The formula for the area of a triangle is A= h b/2.

This means you just divide 16 (the base) by 2 to get 8, and then multiply it by 11 (the height). This gives you 88

Answer now please ‍♀️

Answers

Answer:

8/15

Step-by-step explanation:

In a right triangle, where B is an acute angle, the tan B is equal to the measure of the side opposite B divided by the measure of the shorter side at B

tanB = 16/30 = 8/15

Factor x2+4x+3.
O A. (x-3)(x+1)
O B. (x-3)(x-1)
O C. (x+3)(x+1)
O D. (x+3)(x-1)
QUICKKKKKKKK!!!!

Answers

Answer:

c. (x +3)(x + 1)

Step-by-step explanation:

Factoring an equation is a way of expressing an equation as the product of other linear expressions. The following expression,

[tex]x^2 +4x +3[/tex]

Can be represented as the product of the following,

[tex](x+3)(x+1)[/tex]

To check this, one can distribute, one of the expressions over the other, then simplify, the result should be the starting expression,

[tex](x+3)(x+1)\\[/tex]

Distribute,

[tex](x)(x)+(1)(x)+(3)(x)+(3)(1)[/tex]

Simplify,

[tex]x^2 +x +3x + 3\\[/tex]

[tex]x^2 +4x +3[/tex]

i need help with these 2 questions.

Answers

Answer:

Step-by-step explanation:

6). Surface area of a triangular prism = Area of the triangular bases + (Perimeter of the triangular base)×height

Area of one triangular base = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]

                                              = [tex]\frac{1}{2}\times 4\times 3[/tex]

                                              = 6 km²

Perimeter of the triangular base = (4 + 3 + 5)

                                                      = 12 km

Height of the triangular prism = 7 km

Surface area of the given triangular prism = 2(6) + (12)(7)

                                                                      = 12 + 84

                                                                      = 96 km²

7). Surface area of a rectangular prism = 2(lb + bh + hl)

Here, l = Length, b = Width and h = Height

By substituting the values from the given question,

l = 9 in, b = 9 in, h = 4 in

Surface area of the rectangular prism = 2(9×9 + 9×4 + 4×9)

                                                               = 2(81 + 36 + 36)

                                                               = 2(153)

                                                               = 306 in²                              

Two ride-sharing companies are competing for business in a large city. To help customers compare the companies, a data scientist selects a random sample of 40 completed rides from each of the two companies. From each sample, he computes the mean amount of time that passed between when the request for a pickup was placed and when the customer was picked up. Company A took, on average, 18 minutes to pick up customers with a standard deviation of 4 minutes. Company B took, on average, 12 minutes to pick up customers with a standard deviation of 10 minutes. (a) Construct and interpret a 98% confidence interval for the difference in mean response time for these two ride-sharing companies.

Answers

Solution :

Given :

[tex]$n_1 = n_2 = 40$[/tex]

[tex]$\overline X_1 = 18$[/tex]

[tex]$S_1 = 4$[/tex]

[tex]$\overline X_2 = 12$[/tex]

[tex]$S_2 =10$[/tex]

So we want to test :

[tex]$H_0 : \mu_1=\mu_2 $[/tex]   vs [tex]$H_1 : \mu_1 \neq \mu_2 $[/tex]

a). For 98% confidence interval :

[tex]$=\left((\overline X_1 - \overline X_2) \pm Tn_1+n_2-2, \alpha / 2 \sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}\right)$[/tex]

[tex]$=\left((18-12) \pm 2.375 \sqrt{\frac{4^2}{40}+\frac{10^2}{40}}\right)$[/tex]

[tex]$=(6 \pm 4.0445)$[/tex]

= (1.956, 10.045)

Bruce collects coins. He collected a total of 125 coins. If 68% of the coins he collected were foreign,
how many other coins did he collect?
Bruce collected coins that were not foreign.
(Type a whole number.)

Answers

Answer:

40

Step-by-step explanation:

100 - 68 = 32

32/100 = ?/125

125 x 32 = 4,000

4,000 ÷ 100 = 40

the answer to this equation is 40!

Aling Nora bought 15 kilos of beef worth 1,845. How much is a kilo oof beef?​

Answers

Answer:

1845/15=123

Step-by-step explanation:

Step-by-step explanation:

I don't now just paiattention to the problem that willed be more like it thx

500 people were surveyed about their favorite type of pet. 55% of the people said
"dog", 1/10 said "cat", 0.3 said "bird", and the rest said "other". How many people
responded "other"?

Answers

Answer:

25/500 or 5% said 'other'

Step-by-step explanation:

55% = 275 (dog)

1/10 = 50 (cat)

0.3 = 150 (bird)

Total = 475

475 out of 500 (95%) gave an answer other than 'other'

Online entertainment streaming services have gained in popularity in recent years as an alternative to traditional television. One such company has seen steady growth in each period of 3 months, called a quarter, over the past 4 years. The scatterplot shows the relationship between the number of quarters passed since January 2014 and the number of members to the streaming service. A least-squares equation that summarizes this relationship is members hat = 1.829 (quarters) minus 18.108, with a value for r of 0.991.

A graph titled subscribers versus quarters since January 2011 has quarters since January 2011 on the x-axis, and subscribers on the y-axis. Points are in a line with positive slope.



A graph titled Residuals versus quarters since January 2011 has quarters since January 2011 on the x-axis, and Residual on the y-axis. The points curve down, and then curve up.

Based on the residual plot, is a linear model appropriate for summarizing this relationship?

A linear model is appropriate because the value of r is close to 1.
A linear model is appropriate because the residual plot is curved.
A linear model is not appropriate because the residual plot shows a clear pattern.
A linear model is not appropriate because the scatterplot relating time and subscribers shows a clear pattern.

Answers

Answer:

c hope it nhelps

Step-by-step explanation:it takes away time

Answer:

the person above me is correct!

Step-by-step explanation:

Suppose you add two linear equations that form a system, and you get the result y = −2. How many solutions does the system have?

Answers

Answer:

This system will have 1 solution

Step-by-step explanation:

A linear system that has exactly one solution is called a consistent independent system. Consistent means that the lines intersect and independent means that the lines are distinct. Linear systems composed of lines that have the same slope and the y-intercept are said to be consistent dependent systems.

Trinh is catering a wedding that 112 people will attend. She is making two cakes, a chocolate cake and a carrot cake. 0.625 of the guests will be served chocolate cake and the rest will receive carrot cake. How many guests will get carrot cake?

Answers

O.625 * 112 = 70 people being served chocolate cake
112 - 70 = 42 guests that will get carrot cake

I hope this helps :)

Answer:

Step-by-step explanation:

70

Give two examples of line segments that will make a triangle ?

Answers

Answer:

If the length of any one side is greater than the sum of the length of the other two, the line segments cannot be used to create a triangle. It is possible to create a triangle using 3 line segments if the sum of the lengths of any two line segments is greater than the length of the third.

The art students are using clay. Each student needs 9/10 of a package of clay, there are 32 students in the class. How many packages of clay does the class need?

Answers

Answer:

29

Step-by-step explanation:

[tex]\frac{9}{10} * \frac{32}{1} = \frac{288}{10} = 28.8[/tex]

How many integers between 0 and 500:

1. Have distinct digits?

2. Are divisible by 3?

3. Are divisible by 3 or 5?

4. Are divisible by either 3 or 5, but not both?

5. Are divisible by 3, but not 5?


Pls help asap!!

Answers

Answer:

4

Step-by-step explanation:

they are divisible by either 3 or 5 but not both of these numbers

Answer:

378

Step-by-step explanation:

1 digit numbers - 9

2 digit numbers - 90

Now, subtract the repeating numbers 90-9 = 81

3 digit numbers = 4*9*8 = 288  

Distinct numbers = 9+81+288 = 378 numbers

Find the area of the garden.

Answers

Answer:

28yd²

Step-by-step explanation:

area of square = side *side

=6*6= 36²

area of rectangle (patio)= length* breadth

=4*2=8²

area of garden= area of square - area of rectangle

=36-8

=28 yd²

Answer:

28 sq. yd

Step-by-step explanation:

For finding the area of the garden :

First Case:

Given,

Side of the big square = 6 yd

Therefore,

Area of the big square = side × side

= 6yd × 6yd

[tex] = 36 {yd}^{2} [/tex]

Second Case:

Length of the patio = 4 yd

Breadth of the patio = 2 yd

Therefore,

Area of the patio = Length × Breadth

= 4yd × 2yd

[tex] = 8 {yd}^{2} [/tex]

Last Case:

According to first and second cases,

Area of the garden

= Area of the big square - Area of the patio

[tex] = 36 {yd}^{2} - 8 {yd}^{2} [/tex]

[tex] = 28 {yd}^{2} [/tex]

Hence,

Required area of the garden is 28 sq. yd (Ans)

HELP PLEASE ASAP!!!!! 20 POINTS!!!!

Answers

I think it would be 10x+y because the slope is the amount he spends each month for the streaming service so then it would be 10x because x represent the number of months and then it’s +y because that’s the amount he already spent on the tablet


What is the volume please help me please

Answers

It may be 1296ft cubed

Answer:

1296

(Length x Width x Height)

6x18x12=

1296

I hope this helped! ♡+*

40% of 500 multiplying with decimal​

Answers

Answer:

200

Step-by-step explanation:

First we need to find the decimal version of 40%

to do this we can move the decimal point 2 spaces to the left.

40% ---> 0.40

then we can multiply by 500

This is equal to 200

Answer: 200

Step-by-step explanation: 40%=.40

500•.4=200

This figure was broken into a triangle and a parallelogram as shown. Use the figures to complete the statements. The height of the triangle his in. The area of the triangle is vin.? The area of the parallelogram is in. 2 ? The area of the irregular figure is in. 2. ? h 22 in. 8 in. 10 in. Nin. 8 in. 8 in.​

Answers

Answer: Use the figures to complete the statements.

The height of the triangle h is

✔ 12

in.

The area of the triangle is

✔ 48

in.2.

The area of the parallelogram is

✔ 80

in.2.

The area of the irregular figure is

✔ 128

in.2.

Step-by-step explanation: I js now got it right by the power of guessing

f(x) = 4x3 + 5x2 – 3x – 6
g(x) = 4x – 5
Find (f - g)(x).

Answers

Answer: soo

(4x^3+5x^2-3x-6)-(4x-5)

the answer is 4-^3+5x^2-7x-1

Step-by-step explanation:

Add 8/9+4/9 and Simplify the answer and write as a mixed number.

Answers

Answer:

1 1/3

Step-by-step explanation:

Answer:

12/9= 1 and 1/3

Step-by-step explanation:

Lily has 3 dog toys that are red. One fifth of all her dog toys are red. How many dog toys does Lily have? Complete the explanation. Please I need help!!!!

Answers

Answer:

she has 15 dog toys

Step-by-step explanation:

mutlipy 3 by five because the top number is one

What are the x- and y-intercepts of the line with
equation 4x + 5y = 40 ?

Answers

Answer:

x - intercept - ( 10 , 0)

y - intercept - (0 , 8)

Step-by-step explanation:

X-intercept-(10,0)
Y-intercept-(0,8)
Other Questions
give me examples that is related to affection 4 only In the statement of cash flows for a proprietary fund, the receipt of an operating grant would be included in cash flows from:a. Operating activitiesb. noncapital financing activitiesc. capital and related financing activitiesd. investing activities Which of the following organs are involved with chemical digestion?Which of the following organs are involved with chemical digestion?mouth, pancreas, stomach, small intestinestomach, pancreas, pituitary, large intestineesophagus, liver, small intestine, large intestinesmall intestine, gall bladder, kidneys, mouth An online furniture store sells chairs for $150 each and tables for $450 each. Every day, the store can ship a maximum of 16 pieces of furniture and must sell at least $3900 worth of chairs and tables. If xx represents the number of tables sold and yy represents the number of chairs sold, write and solve a system of inequalities graphically and determine one possible solution. 7. What does static mean?A. boring and complacentB. moving or activeC. still or non-movingD. rigid and awkward please help.What type of sentence will include a subordinating conjunction?a complex sentencea simple sentencea compound sentencea compound-complex sentence Why does granite have larger crystals than obsidian? Due to a change in her living situation, Tahira Bastianich, a single taxpayer, had to repay social security benefits that she received and included in her gross income in a prior year. In 2021, she repaid more than she received in benefits. In early 2022, she received the following Form SSA-1099 reporting information about the amount of benefits paid as well as the amount of benefits repaid during the year. Assuming general rules and circumstances, choose the statement that best describes how Tahira should report this repayment on her 2021 return.a)She may deduct the excess repayment amount shown in Box 5 in the section for "Other Itemized Deductions" on Schedule A, indicating that this is a deduction for repayment of amounts under a claim of right OR she may use the amount to figure a refundable credit, whichever is most favorable.b)She may use the repayment amount shown in Box 4 to figure a refundable tax credit.c)She may deduct the repayment amount shown in Box 4 in the section for "Other Itemized Deductions" on Schedule A, indicating that this is a deduction for repayment of amounts under a claim of right.d)She will not be able to deduct the repayment on her tax return. What do they accidentally burn? how was the medicare pps system designed to curb escalating health care costs Can someone help me please ASAP? Correct answer gets brainliest!! :) In a longitudinal wave the particles are pushed _________________.A.In and out.B.Round and round.C.Over the edge.D.Back and forth. I WILL GIVE BRAINLIESTDo you think Jackson was right to initiate the use of the spoils system to appoint government officials? support your opinion. What is the area of a rectangle whose length is 4 2/3 cm and width is 8 cm? Need answer please !! 3. A runner sprints 50 ft each day for 7 days. How many inches does she sprint during this week? (Again please hurry) how do you find the radius when given the volume and height? Apple manufactures 20 laptops with four distinct components: processor, memory, hard drive and motherboard. Under the disaggregate option, Apple designs specific components for each laptop, resulting in 20x4=80 distinct components. Under the common-component option, Apple designs laptops such that two distinct processors, two distinct memory units, two distinct hard drives and two distinct motherboards can be combined to create 20 laptops. Monthly demand for each of the 20 laptops is independent and normally distributed, with a mean of 10,000 and a standard deviation of 2,000. The replenishment lead time for each component is one month. Apple is targeting a CSL of 95 percent for component inventory.a. Evaluate the safety inventory requirements with and without the use of component commonality.b. Calculate the percentage of safety inventory that was reduced by using component commonality. Solve.t8.4=1.5=Help plzzzz bdaIf mza = 2.m2b, mzc = 60', and the right angles are labeled in the figure, which of the followingproduce an acute angle? Select all that apply