Select the graph that represents a proportional relationship

A classmate writes the matrix at the right to represent a system and says that the solution is x = 2, y = 0. Classmate's error and how to describe it is mentioned as follows:

What is a matrix in math?

Matrix is an arrangement of numbers into rows and columns. Make your first introduction with matrices and learn about their dimensions and elements. A matrix is a rectangular arrangement of numbers into rows and columns. For example, matrix A has two rows and three columns.

x = 2

y = 0

From this we can say that The second row of the matrix doesn't have a coefficient in the y column. The equation represented by second row is 0 = 0 and not y = 0.

Thus it is concluded that the equation represented by second row  is 0 = 0 not y = 0.

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Answer:

1. none are odd

2. 21,35

3.none

4.none

5.27,81

Answers:

1. None (all even)

2. 21 & 35

3. None (all even)

4. None (all even)

5. 27 & 81

⇒ The general formula of a geometric sequence is \(ar^{n-1}\) where a is the first term and r is the common ratio, now in the given a which is 3 and the common ratio r which is 3.

to get the 10th term we use the same general formula

\(a_{n} =ar^{n-1}\)

where \(T_{n}\) is the nth term that is then output and n is the place of the nth term in the general sequence.

For the 10th term we substitute  10 in the place of n and simplify to find the value of the output.

\(a_{10} =ar^{(10-1)} \\a_{10} =ar^{9} \\\)

Now since we know which formula to use to get the 10th term we can substitute the known values of the variables to get the output .

\(a_{10} =(3)(3)^{9} \\a_{10} =59049\)

goodluck

The answer is , we can not conclude the convergence or divergence of this series using the alternating series test.

Given series is:

\(\[\sum_{n=1}^{\infty} (-1)^{n-1} \frac{2}{9^n}\]\)

Let's apply the Alternating series test:

For the series: \(\[\sum_{n=1}^{\infty} (-1)^{n-1} b_n\]\)

If the following two conditions hold good:

1.\(b_n \geq 0\) for all n

2.\(\{b_n\}\) is decreasing for all n.

Then the alternating series: \(\[\sum_{n=1}^{\infty} (-1)^{n-1} b_n\]\)Converges.

So here,\(b_n = \frac{2}{9^n}\) And \(b_n \geq 0\) for all n.

Now, let's check the second condition.

\(\{b_n\}\) is decreasing for all n \(\begin{aligned} b_n \geq b_{n+1} \\\\ \frac{2}{9^n} \geq \frac{2}{9^{n+1}} \\\\ \frac{1}{9} \geq \frac{1}{2} \end{aligned}\)

This is not true for all n.

Therefore, we can not conclude the convergence or divergence of this series using the alternating series test.

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Answer:

Step-by-step explanation:

74/74

Answer:

7 13/20

Step-by-step explanation:

ur welcome :)

Answer:

girls = 40%

boys = 60%

Step-by-step explanation:

Girls = 160

boys = 240

total students = 160+240

= 400

so,

percent of girls = (160/400)×100%

= (2/5)×100%

= 2×20%

= 40%

so,

percent of boys = 100% - 40%

= 60%

The distance (d) that Aidan traveled is 1500 meters.

To find the distance Aidan walked, we need to consider the total distance he covered during the entire journey.

First, Aidan walked from home to his friend's house, covering a distance of 900 meters in 15 minutes. We can calculate his speed using the formula: Speed = Distance / Time. Therefore, Aidan's speed during this leg of the journey is 900 meters / 15 minutes = 60 meters per minute.

After reaching his friend's house, Aidan stayed for 30 minutes. This period of time does not contribute to the distance he walks, as he remains stationary.

Finally, Aidan walks back home in 10 minutes. Using the speed calculated earlier (60 meters per minute), we can determine the distance covered: Distance = Speed * Time = 60 meters/minute * 10 minutes = 600 meters.

Therefore, the total distance Aidan walked is 900 meters + 600 meters = 1500 meters.

Hence, the distance (d) that Aidan traveled is 1500 meters.

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Answer: 72 because when you fill in the a and b it gives you 72

Answer:

54

Step-by-step explanation:

A 90 degree triangle will seperate into three sides equalling 90 degrees.

90          75

-25         -21

= 75       =54

The third side is 54 degrees, I believe. Haven't done this in a while so I apologize if I made any mistakes.

Answer:

1.4

Step-by-step explanation:

base is 4 option 1 is correct

Answer:

x = 6

Step-by-step explanation:

6x + 27 = 12x - 9

6x -12x = -9 -27

-6x = -36 /: (-6)

x = 6

Answer:

8      x = 17

9      x = 36

10     x = 10

Step-by-step explanation:

8

(6x + 5) + (4x+5) = 180

6x + 4x = 180 - 5 - 5

10x = 170

x = 170/10

x = 17

9

2x + 1 = 73

2x = 73 - 1

2x = 72

x = 72/2

x = 36

10

(3x+7) + 53 = 90

3x = 90 - 53 - 7

3x = 90 - 60

3x = 30

x = 30/3

x = 10

Answer:

8) i have no clue

9) x=36

10) x=10

Step-by-step explanation:

9) 73-1=72

72/2=36

x=36

10) 3x+7

90-53=37

37-7=30

30/3

x=10

Answer:

Nicole is now 15 years old

Christine is now 5 years old

Step-by-step explanation:

x = age Nicole

y = age Christine

x = 3y

x+5 = 2×(y+5) = 2y + 10

3y + 5 = 2y + 10

y + 5 = 10

y = 5

x = 3y = 3×5 = 15

1. The official lines of authority. 2. The formal lines of communication. 3. The base level of the organization.

Organizational structure box-and-lines diagrams show at least three things:

1. The official lines of authority: These diagrams illustrate the formal hierarchy within an organization, indicating the chain of command and reporting relationships. The lines represent the flow of authority and communication, highlighting who reports to whom. For example, a manager may have multiple employees reporting to them, and those employees may further have their own subordinates.

2. The formal lines of communication: These diagrams also depict the formal channels through which information flows within the organization. They show how information is passed between different levels and departments. For instance, a diagram may show that information flows vertically from top management to lower-level employees or horizontally between departments.

3. The base level of the organization: These diagrams display the entry-level positions within the organizational structure. This helps to understand the foundational roles that exist and how they fit into the larger structure. For instance, the diagram may indicate positions such as interns, junior associates, or entry-level staff.

In summary, organizational structure box-and-lines diagrams provide a visual representation of the official lines of authority, the formal lines of communication, and the base level of the organization. These diagrams help individuals understand the hierarchy, communication flow, and entry-level positions within an organization.

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She have 1 hour 17 minutes remaining for the second section.

what is total time ?

Time can be defined as an ongoing and continuous sequence of events that occur in succession, from past through the present, and to the future. Time is used to quantify, measure, or compare the duration of events or the intervals between them, and even, sequence events.

Given:

Total time : two hours

Time taken to complete the first section =  forty-three minutes

Now , minutes she have remaining on the second section

= Total time - Time taken to complete the first section

= 2 hours - 43 minutes

= 1 hour 17 minutes

Hence , she have 1 hour 17 minutes remaining for the second section.

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Answer:

5+5=10

Step-by-step explanation:

5+5=10

hope this helps. plz mark me as brainliest.

Answer:

Kindly check explanation

Step-by-step explanation:

Given the equations :

6.01 × □ = 601 No 0.305 × □ = 305 No 0.54 × □ = 540 No 0.097 × □ = 970 Yes

Will the number 103 will make each true?

601 / 6.01= 100 (No, not true)

305 / 0.305 = 1000 (No, not true)

540 / 0.54 = 100 (No, not true)

970 / 0.097 = 10000 (No, not true)

Hence, multiplying each of the equation above by 103 will not make any of the equations true.

The internal rate of return (IRR) is a financial metric used to evaluate the profitability of an investment project. It is the discount rate that makes the net present value (NPV) of the project equal to zero. In other words, it is the rate at which the present value of the cash inflows equals the present value of the cash outflows.

To determine whether Nadia should accept the investment in the new factory, we need to compare the IRR of the project with the required rate of return, which is 14.25 percent in this case.

If the IRR is greater than or equal to the required rate of return, then Nadia should accept the investment. This means that the project is expected to generate a return that is at least as high as the required rate of return.

If the IRR is less than the required rate of return, then Nadia should reject the investment. This suggests that the project is not expected to generate a return that is high enough to meet the required rate of return.

So, to determine whether Nadia should accept the investment, we need to calculate the IRR of the project and compare it with the required rate of return. If the IRR is greater than or equal to 14.25 percent, then Nadia should accept the investment. If the IRR is less than 14.25 percent, then Nadia should reject the investment.

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we can write the Taylor polynomial of degree two as T2(x) = f(0) + f'(0)(x-0) + f''(0)(x-0)^2/2 = 12 - 2x + 12x^2/2 = 6x^2 - 2x + 12.

The values we need for the Taylor polynomials are:

f(0) = 5 + 7 = 12

f'(0) = 5 - 7 = -2

f''(0) = 5 + 7 = 12

Using these values, we can write the Taylor polynomial of degree one as:

T1(x) = f(0) + f'(0)(x-0) = 12 - 2x

To find the Taylor polynomial of degree two, we also need to calculate the second derivative of f(x):

f'''(x) = 5e^x - 7e^-x

f''''(x) = 5e^x + 7e^-x

Then, we can write the Taylor polynomial of degree two as:

T2(x) = f(0) + f'(0)(x-0) + f''(0)(x-0)^2/2 = 12 - 2x + 12x^2/2 = 6x^2 - 2x + 12.

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Answer:

3

Step-by-step explanation:

porque es esa y xq quiero unos puntos:p

Answer: ik the second one

Step-by-step explanation: every month you have to add 500 dollars .

Amount of money owed

1 = 500

2 = 1000

3 = 1500

etc

Answer:

Subtract 5 from input.

Step-by-step explanation:

10-5=5

8-5=3

6-5=1

Note:if you need to ask question let me know about it.

Answer:

14

Step-by-step explanation:

7-3 = 4 4+10=14 therfore 14 would be the answer hope this helps

Answer:

12.4

Step-by-step explanation:

Answer:

6.47

Step-by-step explanation:

1.99/1 lb= x/3.25lb

3 1/4=3.25

Cross multiply

X=(1.99)(3.25)=6.47

Answer:

the answer is the 3rd one

The foot will be moving at a rate of 2.373 ft/s away from the wall when the top is 13 feet above the ground.

From the question, we have the following;

Hypotenuse=17 foot

Height(y)=13 feet

Base(x)=(17^2-13^2)^1/2

        =120^1/2 or sqrt(120)

The ladder against the wall is a right angle triangle, so we have:

x^2+y^2=17^2

x^2+y^2=289

Top slips down at 2ft/s

dy/dt=-2 ft/s, where height (y)=13ft

The foot will be moving horizontally(x), along the x axis, to find how fast the foot will be moving, we find dx/dt

Now, we take the derivative with respect to time:

=x^2+y^2=17^2

=2x(dx/dt)+2y(dy/dt)=0

Substitute the known values, y=13, x=sqrt(120), z=17, dy/dt=-2 ft/s

2(sqrt(120))(dx/dt)+2(13)(-2)=0

2(sqrt(120))(dx/dt)-52=0

We solve for dx/dt:

dx/dt=52/(2sqrt(120))

dx/dt=52/21.9089

dx/dt=2.373 ft/s

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Answer:

78.5

Step-by-step explanation:

circumference formula: \(\pi r^{2}\)

3.14 x \(5^{2}\)

3.14 x 25

78.5

Answer:

Step-by-step explanation:

70

Answer:

5 (2 x 7)

Step-by-step explanation:

( 5 x 2 ) 7 = 70

5 ( 2 x 7 ) also equals 70

10 x 7 could also work if your teacher isn't really picky about it.

The quotient include the following: D. \(\frac{x(2x-3)}{7}\)

In Mathematics and Geometry, a quotient is a mathematical expression that is simply used to represent the division of a number (numerator) by another number (denominator).

Based on the information provided above, we can logically deduce the following mathematical expression;

\(\frac{2x-3}{x} \div \frac{7}{x^2}\)

By rearranging the mathematical expression using the multiplication operation, we have:

\(\frac{2x-3}{x} \times \frac{x^{2} }{7}\\\\2x-3 \times \frac{x }{7}\\\\\frac{x(2x-3)}{7}\)

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