Write an equation that has - 29 for a solution. Show how you know that - 29 is a solution.

15

There's 5 people behind me and 10 people in front of me.

The coefficients in the linear combination are determined by the initial or boundary conditions of the problem.

What is the differential equations?

A differential equation is an equation that relates an unknown function to its derivatives. It describes the behavior of a physical, biological, or engineering system in terms of changes in variables over time.

A fundamental solution in differential equations is a particular solution to a differential equation that contains arbitrary constants. It is called "fundamental" because it is a building block for constructing more general solutions to the equation. The general solution to a differential equation can be found by adding a linear combination of several fundamental solutions. The coefficients in the linear combination are determined by the initial or boundary conditions of the problem.

To learn more about differential equations, Visit

https://brainly.com/question/1164377

#SPJ4

Average velocity = 0 gives the horizontal component of the launch velocity .

What does average velocity mean?

The difference between the change in position or displacement (x) and the time periods (t) during which the displacement happens is known as average velocity.

                     Depending on how the displacement is displaced, the average velocity may be positive or negative. Meters per second (m/s or ms-1) is the standard international unit for average velocity.

Typical flight of a projectile is as shown in the picture above.

In the problem it is given that initial velocity V₀ at an angle θ

above the horizontal. As such inn the picture U=  V₀

This velocity can be resolved into its  x and y components.

Component along x axis, and

Component along y  axis = V₀ Sin θ

Let t be time of flight.

    Average velocity = Displacement/time of flight

  It is given that "It lands at the same level from which it was launched", means that displacement in the y axis is = 0  

      Average velocity  = 0/t  = 0  ............1

cos  θ component.

 Average velocity  =    V₀  cos  θ ............ 2

Average velocity we need to add both vectors along x and y directions

. In this instant it is simple as one of the vectors is  

                        Average velocity  = 0

Learn more about Average velocity

brainly.com/question/862972

#SPJ4

The distance between David's house and school is definitely greater than 8.5miles as his school is more than 8.5 miles.

The answer must not be 8 , because as David stays 8.5 miles distance more from his school. An Inequality for a is a>8.5.

The illustration of two expressions by inequal symbol is known as inequality mathematical statement in algebra. It has non equal expressions on both sides. The inequality shows the values on the left side should be bigger or smaller than the expression on the right. The relationships between two algebraic expressions that are expressed using inequality symbols are literal inequalities. An algebraic expression is an expression built up from constant algebraic variables, numbers and the operators.

So the distance between David's house and school must be the value greater than 8.5

Learn more about distance here:

https://brainly.com/question/15172156

#SPJ4

So x/1 + y/-2 = 1 and x/1 + y/-2 = 1 are the slope intercept forms of graphs 1, respectively.

The optimal angle in geometry is where the line's incline contacts the y-axis. a point where a line or curve's y-axis crosses it. This is demonstrated using the equation and for straight line, Y = shifting from traditional, where m denotes the slope and c the en la. The line's slope (m) as well as y-intercept (b) are highlighted in the analytic form of the equation. The slope is feet and the y-intercept is b when an equation has to have the intercept form (y=mx+b). It is also reasonable to rewrite some equations so that they appear to be slope intercepts. For example, the inclination and y-intercept are both modified to 1 if y=x is rewritten as y=1x+0.

given

The slope intercept form = x/a + y /b = 1

1) for graph 1

The intercept form is  x/1 + y/-2 = 1

2) for graph 2

The intercept form is x /-1 + y /1 = 1

So x/1 + y/-2 = 1 and x/1 + y/-2 = 1 are the slope intercept forms of graphs 1, respectively.

To know more about slope intercept visit:

https://brainly.com/question/19824331

#SPJ1

The largest possible value of p can be determined by analysing the ratio of the volumes of the two rectangular boxes.

The volume of the first box is V1 = m*p*n and the volume of the second box is [tex]$V2 = (m2)\cdot (n2)\cdot (p2)$[/tex]. Therefore, we can set up the following equation to solve for p:

[tex]$\frac{V1}{V2} = \frac{mnp}{(m2)(n2)(p2)} = \frac{1}{2}$[/tex]

Solving for p gives us the following:

[tex]$p = \sqrt[3]{\frac{2(m2)(n2)}{mn}}$[/tex]

Since m, n, and p must all be integers, the largest possible value of p is the largest integer such that

[tex]$p \le \sqrt[3]{\frac{2(m2)(n2)}{mn}}$.[/tex]

Learn more about Volume:

https://brainly.com/question/463363

#SPJ4

log9 72 to four decimal places is 2.8594

To approximate log9 72 using common logarithms, we can use logarithmic properties and logarithmic tables.

First, we can rewrite 72 as [tex]9^3[/tex] to find the exponent that gives us 72:

log9 72 = log9 ([tex]9^3[/tex]) = 3

Now, we can use logarithmic tables or a calculator to find the common logarithm of 9, which is 0.954243:

log10 9 = 0.954243

Finally, we can divide the result by the common logarithm of 10 to find the logarithm to base 9:

log9 72 = (1/log10 9) * log10 72 = 0.954243 * log10 72 ≈ 2.859437

log9 72 to four decimal places is 2.8594.

To learn more about logarithmic properties:

https://brainly.com/question/30339791

#SPJ4

Answer:

Sunrise; $35

Step-by-step explanation:

Hope it helps! =D

For the velocity function v(t) = t³ - 3t² + 12t + 4, with interval 0 ≤ t ≤ 3, the maximum acceleration is option D: 21 m/s².

What is velocity?

The pace at which an object's position changes in relation to a frame of reference and time is what is meant by velocity. Although it may appear sophisticated, velocity is just the act of moving quickly in one direction. Since it is a vector quantity, the definition of velocity requires both magnitude (speed) and direction.

The velocity function is v(t) = t³ - 3t² + 12t + 4.

The interval is given as - [0,3]

Maximize the function to obtain the value of t.

v'(t) = a(t) = 3t² - 6t + 12

Maximize it again -

a'(t) = 6t - 6 = 0

6t = 0 + 6

t = 6/6

t = 1

Now there are three critical points for t = {0,1,3}

1 and 3 are endpoints of the interval [0,3].

To get the maximum acceleration, plug in the values of t in the equation .

First substitute the value t = 0 -

a(0) = 3t² - 6t + 12

a(0) = 3(0)² - 6(0) + 12

a(0) = 12

Now substitute the value t = 1 -

a(1) = 3t² - 6t + 12

a(1) = 3(1)² - 6(1) + 12

a(1) = 3 - 6 + 12

a(1) = 15 - 6

a(1) = 9

Now substitute the value t = 3 -

a(3) = 3t² - 6t + 12

a(3) = 3(3)² - 6(3) + 12

a(3) = 27 - 18 + 12

a(3) = 39 - 18

a(3) = 21

So, the maximum acceleration is 21 m/s² when t =3.

Therefore, the maximum acceleration is 21 m/s².

To learn more about velocity from the given link

brainly.com/question/24445340

#SPJ4

Ji-Yoon's loading speed is 6 trucks per hour.

From the question, we have the following parameters that can be used in our computation:

Ji-Yoon loaded 84 Trucks in 14 hours

Ji-Yoon's loading speed an be calculated by dividing the total number of trucks loaded (84) by the number of hours it took to load them (14):

This is repesented as

84/14 = 6

Hence, the speed is 6 trucks per hour

Read more about speed at

https://brainly.com/question/3518342

#SPJ1

The total number of different committees possible is 6 * 3 * 2 * 56 = 3456.

If 2 of the men refuse to serve together, then we have to choose the first man for the committee first and then choose the other two men one by one, making sure that the two men who refuse to serve together are not chosen together.

There are 6 possible choices for the first man. After the first man is chosen, there are 4 remaining men, and we have to choose 2 more men from these 4. However, one of these 2 men must be the one who refused to serve with the first man. So, there are only 3 possible choices for the second man. After the second man is chosen, there are only 2 possible choices for the third man.

Next, we have to choose 3 women from 8. There are C(8,3) = 56 ways to do this.

So, the total number of different committees possible is 6 * 3 * 2 * 56 = 3456.

To learn more about the number, visit:

brainly.com/question/17429689

#SPJ4

The total number of different committees possible is 6 * 3 * 2 * 56 = 3456.

If 2 of the men refuse to serve together, then we have to choose the first man for the committee first and then choose the other two men one by one, making sure that the two men who refuse to serve together are not chosen together.

There are 6 possible choices for the first man. After the first man is chosen, there are 4 remaining men, and we have to choose 2 more men from these 4. However, one of these 2 men must be the one who refused to serve with the first man. So, there are only 3 possible choices for the second man. After the second man is chosen, there are only 2 possible choices for the third man.

Next, we have to choose 3 women from 8. There are C(8,3) = 56 ways to do this.

So, the total number of different committees possible is 6 * 3 * 2 * 56 = 3456.

To learn more about Number

brainly.com/question/17429689

#SPJ4

Based on the sample data, there is a 95% chance that the true proportion of all smartphone users who would admit to walking into something or someone while texting on their cell phone is between 0.199 and 0.271.

A 95% confidence interval for the proportion of all smartphone users who would admit to walking into something or someone while texting on their cell phone can be calculated as follows:

Let p be the true proportion of all smartphone users who would admit to walking into something or someone while texting on their cell phone. Based on the sample of 750 respondents, the point estimate of p is 176/750 = 0.235.

Using the normal approximation to the binomial distribution, the standard error of the point estimate is estimated as [tex]\sqrt{ (p(1-p)/n)}[/tex], where n = 750. This gives us a standard error of [tex]\sqrt{(0.235 * 0.765/750)}[/tex] = 0.018.

A 95% confidence interval for the true proportion p is then given by the point estimate plus or minus 1.96 times the standard error. This gives us the following interval:

0.235 - 1.96 * 0.018 <= p <= 0.235 + 1.96 * 0.018

0.199 <= p <= 0.271

So, we are 95% confident that the true proportion of all smartphone users who would admit to walking into something or someone while texting on their cell phone is between 0.199 and 0.271.

Interpretation: Based on the sample data, there is a 95% chance that the true proportion of all smartphone users who would admit to walking into something or someone while texting on their cell phone is between 0.199 and 0.271.

Here you can learn more about confidence interval

brainly.com/question/30329435

#SPJ4

The limit of (xy⁴)/(x⁴y⁴) is 0.

The limit squeeze theorem (also known as sandwich theorem) states that if a function f(x) lies between two functions g(x) and h(x) and the limits of each of g(x) and h(x) at a particular point are equal (to L), then the limit of f(x) at that point is also equal to L. This looks something like what we know already in algebra. If a ≤ b ≤ c and a = c then b is also equal to c. The squeeze theorem says that this rule applies to limits as well. We define the squeeze theorem mathematically as follows:

"Let f(x), g(x), and h(x) are three functions that are defined over an interval I such that g(x) ≤ f(x) ≤ h(x) and suppose lim ₓ → ₐ g(x) = lim ₓ → ₐ h(x) = L, then lim ₓ → ₐ f(x) = L".

Here:

The function f lies between g and h and hence they are lower and upper bounds of f respectively.

'a' doesn't necessarily need to be within I.

We have to find the limit of (xy⁴)/(x⁴y⁴).

After applying the limit squeeze theorem, we get

[tex]\lim_{x \to \infty} \frac{xy^{4} }{x^{4}y^{4} }\\ = \lim_{x \to \infty} \frac{1}{x^{3} } \\= 0[/tex]

Thus, the limit of (xy⁴)/(x⁴y⁴) is 0.

To learn more about limits, visit brainly.com/question/8533149

#SPJ4

Answer:

There are 5 ducks

Step-by-step explanation:

2 ducks behind

1 duck in the middle

2 ducks infront

The probability of selecting a $10 dollar bill or a $5 dollar bill would be = 13/23

Probability is defined as the expression that can be used to represent the possible outcome of an event which may likely occur or not.

The quantity of $1 bill = 10

The quantity of $5 bill = 10

The quantity of $10 bill = 3

The sum total of bills in the box = 23

The probability of choosing a 5 or 10 bills;

= 10+3/23

= 13/23

Learn more about probability here:

https://brainly.com/question/25870256

#SPJ1

Answer:

53 1/4

Step-by-step explanation:

55 5/6  - 1 1/3 - 1 1/4  Rewrite with a common denominator

55 10/12 - 1 4/12 - 1 3/12

55 10/12 - 1 4/12 = 54 6/12

54 6/12 - 1 3/12

53 3/12

53 1/4

This proof by induction shows that n + 1 log n = 2 for all positive integers n. This holds true since S(1) = 2, and S(k + 1) = 2 for any integer k ≥ 1.

Proof:

Let S(n) = n + 1 log n

We will prove S(n) = 2 by induction.

Base Case:

Let n = 1. Then S(1) = 1 + 1(log 1) = 1 + 0 = 1 = 2.

Inductive Step:

Assume S(k) = 2 for some arbitrary integer k ≥ 1. We must show that S(k + 1) = 2.

S(k + 1) = (k + 1) + 1(log(k + 1))

= k + 1 + 1(log k + log 1)

= k + 1 + 1(log k + 0)

= k + 1 + 1(log k)

= k + 1 + log k

= 2 + log k

= 2 (by induction hypothesis)

Therefore, S(n) = 2 for all positive integers n.

This proof by induction shows that n + 1 log n = 2 for all positive integers n. This holds true since S(1) = 2, and S(k + 1) = 2 for any integer k ≥ 1.

Learn more about integer here

https://brainly.com/question/15276410

#SPJ4

The correct answer fort parallel angles is x = 33° and y = 10°.

The angles created when a transversal intersects two parallel lines are known as corresponding angles. Opening and shutting a lunchbox, completing a Rubik's cube, and an infinite stretch of parallel train lines are common examples of identical angles.

Angle 3y + 20° and angle 5y are parallel angles.

3y + 20° = 5y

2y =  20°

y = 10°

Angles 2x - 16° and 3y + 20° are in direct opposition to one another.

3y + 20° =  2x - 16°

Put the value of angle y in the equation.

3(10) + 20 = 2x - 16

30 + 20 = 2x - 16

50 = 2x - 16

2x = 66

x = 33

As a result, the angles are 33° for x and 10° for y.

To know more about parallel angles visit:-

https://brainly.com/question/7849620

#SPJ1

Question:

Find the value of x for which l is parallel to m. The diagram is not to scale. Lines l and m are parallel.

Answer: 24 feet

Step-by-step explanation:

Perimeter: 2(length+width)

2(7+5)

14+10=24

30 students are taking none of the classes.

We can use the Principle of Inclusion-Exclusion (PIE) to determine the number of students taking none of the classes. The PIE states that the total number of elements in the union of several sets is equal to the sum of elements in each set, minus the sum of elements in the pairwise intersections, plus the sum of elements in the three-way intersections, and so on.

In this case, we want to find the number of students taking none of the classes, which is equal to the total number of students (100) minus the number of students taking at least one class.

So, we can apply PIE as follows:

students taking none of the classes = 100 - (students in prob. + students in la + students in comp - students in prob. & comp - students in la & comp - students in prob. & la + students in prob., comp & la)

Using the given information, we have:

students taking none of the classes = 100 - (65 + 45 + 40 - 25 - 20 - 30 + 10)

students taking none of the classes = 100 - (95 - 25)

students taking none of the classes = 100 - 70

students taking none of the classes = 30

Hence, 30 students are taking none of the classes.

To learn more about intersection visit: brainly.com/question/28337869

#SPJ4

30 students are taking none of the classes.

We can use the Principle of Inclusion-Exclusion (PIE) to determine the number of students taking none of the classes. The PIE states that the total number of elements in the union of several sets is equal to the sum of elements in each set, minus the sum of elements in the pairwise intersections, plus the sum of elements in the three-way intersections, and so on.

In this case, we want to find the number of students taking none of the classes, which is equal to the total number of students (100) minus the number of students taking at least one class.

So, we can apply PIE as follows:

students taking none of the classes = 100 - (students in prob. + students in la + students in comp - students in prob. & comp - students in la & comp - students in prob. & la + students in prob., comp & la)

Using the given information, we have:

students taking none of the classes = 100 - (65 + 45 + 40 - 25 - 20 - 30 + 10)

students taking none of the classes = 100 - (95 - 25)

students taking none of the classes = 100 - 70

students taking none of the classes = 30

Hence, 30 students are taking none of the classes.

To learn more about Intersection

brainly.com/question/28337869

#SPJ4

Ken borrowed P8,077.84 from Haguel for a period of 2 years and a month.

To calculate the amount Ken borrowed,

We need to use the formula for compound interest:

A = P * (1 + r/n)^(nt)

Where:

A is the amount after t years

P is the principal amount (the amount borrowed)

r is the annual interest rate (8% in this case)

n is the number of times the interest is compounded in a year (4 times in this case, since the interest is compounded quarterly)

t is the number of years

We know the amount after 2 years and 1 month,

So we can use that information to solve for the principal amount P.

First, we need to convert the number of years and months into a single value in terms of years:

2 years and 1 month = 2 + 1/12 = 2.0833 years

Next, we can plug in the values into the formula:

A = P * (1 + r/n)^(nt)

A = P * (1 + 0.08/4)^(4 * 2.0833)

A = P * (1.02)^(8.3333)

A = P * 1.2288

We also know that Ken is paying P2,500 every 3 months,

So we can multiply that by 4 (since there are 4 quarters in a year) to find the annual payment:

P2,500 * 4 = P10,000

And we know that A = P * 1.2288,

So we can substitute in the values we have:

P10,000 = P * 1.2288

Now we can solve for P:

P = P10,000 / 1.2288

P = 8077.84

For more questions on compound interest

https://brainly.com/question/29502697

#SPJ4

With the identification of plans, angles, Rectangles, and segments, you can find the shoe box in the attachment.

Every point on a Plano has the same level because it is a space with only two dimensions.

The ángulos are a component of a plan that is created from two recitals with a common vertex. In the case of our shoe box, all angles are right-angled, despite the perspective appearing to be greater or smaller than 90 degrees.

Semirrectas are rectus with a known beginning but no known end. We can extend two segments in the shoe box so that they become semi-rectangles.

The segments are straight lines with clearly defined beginnings and end. All of the lines that form in the shoe box are segments.

The following is identified in the drawing.

Know more about rectangles

https://brainly.com/question/30385039

#SPJ4

The Full question:

Consider a traditional and illustrated shoe box. This illustration indicates or names the following. ​

The average speed of the whole journey is 24 kilometres per hour.

The average speed is the total distance travelled by the object in a particular time interval.

A car travels from X to Y at an average speed of 60km/h and returns to X at a speed of 40km/h.

Therefore, the average speed for the whole journey can be calculated as follows:

The total distance travelled is 120 km.

Hence,

total time = 120 / 60 + 120 / 40

total time = 2 + 3 = 5 hours

Therefore,

average speed = total distance / total time taken

average speed = 120 / 5

average speed = 24 km/hr

learn more on average speed here: https://brainly.com/question/29798030

#SPJ1

Answer:

X = 2

Step-by-step explanation:

5x + 10 = 2x + 16

3x + 10 = 16

3x = 6

x = 2

Hope this helps! Pls give brainliest!

The line of best fit gives a general outlook on the data while the correlation is the exact points showcased to calculate or show for a data set or table.

It should be noted that between the two variables it is a positive correlation because they both increase in the same direction.  

Positive correlation is a relationship between two variables in which both variables move in tandem that is, in the same direction.

In order to find the residual one would subtract the predicted value from the measured value.

The diagram is attached.

Learn more about line of best fit on:

https://brainly.com/question/17261411

#SPJ1

P ↔ Q is a tautology because if P and Q are equivalent propositional forms, they have the same truth value in every possible interpretation, making the bi-conditional proposition P ↔ Q always true.

A tautology is a proposition that is always true, regardless of the truth values of its component propositions.

When two propositions, P and Q, are equivalent, it means that they have the same truth value in every possible interpretation. That is, P and Q are logically equivalent.

Therefore, if P and Q are equivalent propositional forms, then P ↔ Q, the bi-conditional proposition, is a tautology. This is because the truth value of P ↔ Q will always be true, as both P and Q have the same truth value in every possible interpretation.

This can be shown through the truth table for P ↔ Q. The bi-conditional proposition is true if and only if both P and Q have the same truth value. If P and Q are equivalent, then they will always have the same truth value, and so P ↔ Q will always be true.

In general, for any equivalent propositions P and Q, P ↔ Q will always be a tautology.

To learn more about the equivalent propositional, visit:

brainly.com/question/14811926

#SPJ4

The vector parametric equations that describe the helical path you take from the point (28, 0, 0) to the point (28, 0, 40) as you make 4 revolutions during the time interval 0 ≤ t ≤ 1 are:

x(t) = 28 + 18 cos(πt / 15)

y(t) = 18 sin(πt / 15)

z(t) = 50t

To find a vector parametric equation for the helical path, we need to describe the position of a point on the spiral staircase as it moves from (28, 0, 0) to (28, 0, 40) while making 4 revolutions during the time interval 0 ≤ t ≤ 1.

Let's define the following parameters:

R: Radius of the spiral staircase = 18 feet

H: Height of the spiral staircase = 50 feet

N: Number of revolutions during the time interval = 4

T: Total time taken to complete N revolutions = 1 hour (or 60 minutes)

The parametric equations for the helical path can be given as follows:

x(t) = 28 + R × cos(2πNt/T)

y(t) = R × sin(2πNt/T)

z(t) = H × t

Where:

x(t), y(t), z(t) are the coordinates of the point on the helical path at time t.

R × cos(2πNt/T) and R × sin(2πNt/T) describe the circular motion of the point in the xy-plane as it makes N revolutions over the time interval.

H × t describes the linear motion of the point along the z-axis.

Now, let's plug in the given values:

R = 18 feet

H = 50 feet

N = 4

T = 60 minutes

And simplify the equations:

x(t) = 28 + 18 × cos(2π × 4t / 60)

y(t) = 18 × sin(2π × 4t / 60)

z(t) = 50 × t

Simplifying further:

x(t) = 28 + 18 × cos(π × t / 15)

y(t) = 18 × sin(π × t / 15)

z(t) = 50 × t

These equations describe the helical path you take from the point (28, 0, 0) to the point (28, 0, 40) as you make 4 revolutions during the time interval 0 ≤ t ≤ 1.

Learn more about vector parametric equation click;

https://brainly.com/question/32591934

#SPJ4

The equation would be written in exponential form as follows: [tex]$$\ln(m) = n \Rightarrow m = e^n$$[/tex]

The equation ln(m)=n can be rewritten in exponential form as m=e^n. This can be seen by taking the natural logarithm (ln) of both sides of the equation. The natural logarithm of m is equal to n, so we have ln(m)=n. Applying the exponential function, e^x, to both sides of the equation gives us m=e^n. This can be further understood by calculating the exponential of both sides.

For example, if n = 1, then ln(m)=1, so m=e^1. Applying the exponential function, e^x, to both sides of the equation, we have m=e^1. Calculating e^1 gives us m=e^1=2.718. Thus, ln(m)=1 can be rewritten in exponential form as m=2.718.

The equation in Latex would be written as follows: [tex]$$\ln(m) = n \Rightarrow m = e^n$$[/tex]

Learn more about exponential form here:

https://brainly.com/question/28970280

#SPJ4

To solve a 3×3 augmented matrix use the method of elementary row operations.

What is a matrix?

A matrix is a rectangular array or table with numbers or other objects arranged in rows and columns. Matrices is the plural version of matrix. The number of columns and rows is unlimited. Matrix operations include addition, scalar multiplication, multiplication, transposition, and many others.

An augmented matrix for a system of equations is a matrix of numbers where each column contains all the coefficients for a single variable and each row represents the constants from one equation (both the coefficients and the constant on the other side of the equal sign).

The system of equations are - x - 2y + 3z = 7, 2x + y + z = 4, -3x + 2y -2z = -10

Here is the augmented matrix for this system.

[tex]\left[\begin{array}{rrr|r}1 & -2 & 3 & 7 \\2 & 1 & 1 & 4 \\-3 & 2 & -2 & -10\end{array}\right][/tex]

This matrix can be solved using the method of elementary row operations.

Interchange Two Rows. With this operation interchange all the entries in row  i and row j. The notation used here is Ri ↔ Rj.

[tex]\left[\begin{array}{rrr|r}1 & -2 & 3 & 7 \\2 & 1 & 1 & 4 \\-3 & 2 & -2 & -10\end{array}\right] \stackrel{R_1 \leftrightarrow R_3}{\rightarrow}\left[\begin{array}{rrr|r}-3 & 2 & -2 & -10 \\2 & 1 & 1 & 4 \\1 & -2 & 3 & 7\end{array}\right][/tex]

Multiply a Row by a Constant. In this operation multiply row i by a constant c and the notation will be cRi.

[tex]\left[\begin{array}{rrr|r}1 & -2 & 3 & 7 \\2 & 1 & 1 & 4 \\-3 & 2 & -2 & -10\end{array}\right] \stackrel{-4 R_3}{\rightarrow}\left[\begin{array}{rrr|r}1 & -2 & 3 & 7 \\2 & 1 & 1 & 4 \\12 & -8 & 8 & 40\end{array}\right][/tex]

Add a Multiple of a Row to Another Row.

Row i will be replaced in this procedure with row i times a constant c plus row j. Ri + cRi → Rj is the notation for this operation. This procedure involves taking an input from row i multiplying it by c, adding the equivalent value from row j, and then returning the result to row i.

[tex]\left[\begin{array}{rrr|r}1 & -2 & 3 & 7 \\2 & 1 & 1 & 4 \\-3 & 2 & -2 & -10\end{array}\right] \begin{gathered}R_3-4 R_1 \rightarrow R_3 \\\rightarrow\end{gathered}\left[\begin{array}{rrr|r}1 & -2 & 3 & 7 \\2 & 1 & 1 & 4 \\-7 & 10 & -14 & -38\end{array}\right][/tex]

Let’s go through the individual computation to make sure you followed this.

-3 - 4(1) = -7

2 - 4(-2) = 10

-2 - 4(3) = -14

-10 - 4(7) = -38

Therefore, the matrix is solved using row operations.

To learn more about matrix from the given link

https://brainly.com/question/1279486

#SPJ4