BRAINLEST ANSWER!! please show the steps

4 (2x-7) +4 > -88

The transformations to the graph of the quadratic function are given as follows:

A translation happens when either a figure or a function is moved horizontally or vertically on the coordinate plane.

The four translation rules for functions are defined as follows:

Additionally, when the function is multiplied by |a| > 1, it is said that the function is vertically stretched by a factor of a.

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Answer:

52

Step-by-step explanation:

42, 45, 58, 63

The mean is the sum divided by the number of terms

(42+ 45+ 58+ 63)/4

208/4

52

Answer:

Step-by-step explanation:

42 + 45 + 58 +631 + 422 + 473 + 52 = 1723

then divide by 7 to get 246.142857

hope this helps :)

Answer:

b. (6, 4)

Step-by-step explanation:

i hope this helps :)

Answer:

B. (6,4)

Step-by-step explanation:

The point is inside the triangle.

Answer:

(-4,-18) and (5,90)

Step-by-step explanation:

I'll assume the first equation is supposed to be y – 10 = 11x + x^2

This is a parabola.  The second equation is a straight line:  

y – 12x = 30

We want to find the points at which these lines intersect.  They will intersect for any (x,y) that

Let's rearrange the second equation to isolate y:

y – 12x = 30

y  = 30 + 12x

Now we can take the this value of y and substitute it into the first equation:

y – 10 = 11x + x^2

(30 + 12x) – 10 = 11x + x^2

20 + 12x = 11x + x^2

0 = x^2 -x -20

We can factor this into (x+4)(x-5)

That means x can be either -4 or 5.

Find the value of y using these values of x in both original equations:

For x = -4

y – 10 = 11x + x^2

y  = 11x + x^2 + 10

y = 11(-4)+(-4)^2 +10

y = -44 + 16 + 10

y = -18    The point both lines meet is at (-4, -18) which was already given in the problem.  

For x = 5

y – 10 = 11x + x^2

y  = 11x + x^2 + 10

y  = 11(5) + (5)^2 + 10

y  = 55 + 25 + 10

y = 90

The second point both lines meet is (5,90).

We should use both solutions in the second equation to verify these values, but I'll graph them, instead.  See the attached graph to prove these points are correct.

A binomial is a factor of a polynomial has been determined by using the

polynomial division method.

To determine if a binomial is a factor of a polynomial, you can use the polynomial division method. The basic idea is to divide the polynomial by the binomial and check if the remainder is zero. If the remainder is zero, then the binomial is a factor of the polynomial. Here's the step-by-step process:

Write the polynomial and the binomial in standard form, with the terms arranged in descending order of their exponents.

Perform the long division of the polynomial by the binomial, similar to how you would divide numbers. Start by dividing the highest degree term of the polynomial by the highest degree term of the binomial.

Multiply the binomial by the quotient obtained from the division and subtract the result from the polynomial.

Repeat the division process with the new polynomial obtained from the subtraction step.

Continue dividing until you reach a point where the degree of the polynomial is lower than the degree of the binomial.

If the remainder is zero, then the binomial is a factor of the polynomial. If the remainder is non-zero, then the binomial is not a factor.

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Linear transformations are defined as mathematical functions that map a vector space to another vector space. An inverse of a linear transformation is a transformation that will take the output of the first transformation and get back to the original input.

A linear transformation is invertible if and only if its matrix representation is invertible. The matrix representation of the linear transformation can be represented as below:\(\begin{pmatrix} 1 & 7\\ 3 & 20 \end{pmatrix}\)The inverse of the above matrix can be found using the formula\( A^{-1} = \frac{1}{det(A)}adj(A)\)Where det(A) is the determinant of the matrix A, and adj(A) is the adjugate of A.

The determinant of A is calculated as\( det(A) = \begin{vmatrix} 1 & 7\\ 3 & 20 \end{vmatrix} = 20 - 21 = -1\)The adjugate of A is calculated as\(adj(A) = \begin{pmatrix} 20 & -7\\ -3 & 1 \end{pmatrix}\)Therefore, the inverse of the linear transformation can be calculated as\(A^{-1} = \frac{1}{-1}\begin{pmatrix} 20 & -7\\ -3 & 1 \end{pmatrix} = \begin{pmatrix} -20 & 7\\ 3 & -1 \end{pmatrix}\)Thus, the inverse of the linear transformation y1 = x1 + 7x2 and y2 = 3x1 + 20x2 is given by y1 = -20x1 + 7x2 and y2 = 3x1 - x2.

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Answer:

45%

Step-by-step explanation:

To find the percent you need to divide 1,170 by 2,600.

There are 4 vertices with degree 3, and 2 vertices with degree 4. So, there are a total of 6 vertices in this graph.

In a simple undirected graph with 10 edges, 2 vertices have a degree of 4 and the rest have a degree of 3. To determine the number of vertices in this graph, use the formula:

Sum of degrees = 2 * number of edges

Let x be the number of vertices with degree 3. Then:

(2 * 4) + (3 * x) = 2 * 10

8 + 3x = 20

3x = 12

x = 4

We also know that two of the vertices have a degree of 4, which means that together they contribute 8 to the sum of all vertex degrees. This leaves us with 20 - 8 = 12 degrees left to distribute among the other vertices. Since the remaining vertices all have a degree of 3, we can set up the equation 3x = 12, where x is the number of remaining vertices. Solving for x, we get x = 4. Therefore, the graph has a total of 6 vertices - two with a degree of 4 and four with a degree of 3.

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Answer:

  x = 4

Step-by-step explanation:

A midpoint divides the segment into two equal parts. Each is half the length of the whole.

  XY = (1/2)XZ

  5x+4 = (1/2)(8x +16)

  5x +4 = 4x +8

  x = 4 . . . . . . . . . subtract 4x+4 from both sides

_____

Check

5x+4 = 5(4)+4 = 24

8x+16 = 8(4) +16 = 48

So, XY is half of XZ.

Answer:

\( \frac{14}{75 } \times \frac{15}{22} = \frac{7}{55} \)

Step-by-step explanation:

\(75 \div 15 = 5 \: 14 \div 2 = 7 \: 22 \div 2 = 11\)

The value of the fraction is given by the equation A = 7 / 55

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the first fraction be represented as p = 14/75

Let the second fraction be represented as q = 15/22

Now , A = p x q

Substituting the values in the equation , we get

A = ( 14/75 ) x ( 15/22 )

A = 210 / 1650

A = 42 / 330

A = 14 / 110

A = 7/55

Therefore , the value of A is 7/55

Hence , the fraction is A = 7/55

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Answer:

111.21

Step-by-step explanation:

Took the test

(a) To solve the differential equation -xy, we can use separation of variables. By integrating both sides and applying the initial condition when x=0, y=50, we can find the particular solution.

(b) The value of x for which y is decreasing can be determined by analyzing the sign of the derivative of y with respect to x.

(a) Given the differential equation -xy, we can use separation of variables to solve it. Rearranging the equation, we have dy/y = -xdx. Integrating both sides, we get ∫(1/y)dy = -∫xdx. This simplifies to ln|y| = -\(x^{2}\)/2 + C, where C is the constant of integration. Exponentiating both sides, we have |y| = e^(-\(x^{2}\)/2 + C) = e^C * e^(-\(x^{2}\)/2). Since y > 0, we can drop the absolute value and write the solution as y = Ce^(-\(x^{2}\)2). To find the particular solution, we use the initial condition y(0) = 50. Substituting the values, we have 50 = Ce^(-0^2/2) = Ce^0 = C. Therefore, the particular solution to the differential equation is y = 50e^(-\(x^{2}\)/2).

(b) To determine the values of x for which y is decreasing, we analyze the sign of the derivative of y with respect to x. Taking the derivative of y = 50e^(-\(x^{2}\)/2), we get dy/dx = -x * 50e^(-\(x^{2}\)/2). Since e^(-\(x^{2}\)2) is always positive, the sign of dy/dx is determined by -x. For y to be decreasing, dy/dx must be negative. Therefore, -x < 0, which implies that x > 0. Thus, for positive values of x, y is decreasing.

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Answer:

\(y = \frac{-2}{3}x + 2\)

Step-by-step explanation:

The first step is convert the given equation in a dependent and independent equation.

\(2x + 3y = 12\)

\(3y = 12 - 2x\)

\(y = 4 - \frac{2}{3}x\)

\(x\) is the independent variable and \(y\) the dependent variable.

Since both lines are parallel the slope of both equations are the same

\(y = \frac{-2}{3}x + b\)

Now for find the unknow \(b\) replace the \(x\) and \(y\) fo the given point.

\(4 = (\frac{2}{3})3 + b\)

\(4 = 2 + b\)

\(4 - 2 = b\)

\(2 = b\)

So the final equation is equal to

\(y = \frac{-2}{3}x + 2\)

730*0.03=21.9

She makes $21.90

Answer:

go up 4 on the y axis and then go up five and to the left 1. Also go to desmos and it will answer all out your graphing question.

Step-by-step explanation:

Brainliest pls

Answer:

x = 34

Step-by-step explanation:

x/3  - 7/3 = 9

Combine like terms

(x-7)/3 = 9

Multiply each side by 3

(x-7)/3 * 3 = 9*3

x-7 = 27

Add 7 to each side

x-7+7 = 27+7

x = 34

Answer:

112 cm (red, 4)

Step-by-step explanation:

length = b

width = a

b = 7a

42 = b - a

42 = 7a - a

42 = 6a

a = 7          => b = 7a       b = 7*7 = 49

Perimeter = 2*(a+b)

= 2*(7+49)

= 2*(56)

= 112 cm

Answer:

5 months

Step-by-step explanation:

One cellphone provider charges AED10 per month plus an activation fee of AED20.

If I used the services of this cellphone provider for x months, total charges for the services,

y = 10x + 20 --------(1)

Similarly, charges for the second cellphone provider for x months of uses will be,

y = 11x + 15 -------(2)

Input-output table for equation (1)

x      1           2            3            4            5

y     30        40         50          60          70

Input output table for equation (2)

x      1           2            3            4            5

y     26        37          48          59         70

From these tables, we find (5, 70) is a common point for both.

It reveals that after the uses of 5 months charges for both the cellphone providers will be same (y = $70)

Answer:

In 2007 it was 450 and 2011 it was 300

Step-by-step explanation:

So the change was 300 I think this correct

Answer:

Step-by-step explanation:

Total marbles = 5  + 6 + 2 = 13

P( getting blue ball from first draw) = 5/13

The marble is not replaced. So, Now total marbles will be 12 & number blue marbles will be 4

P( getting blue ball from second draw) = 4/12 = 1/3

P(getting two blues) = \(\frac{5}{13}*\frac{1}{3}\\\)

                                  = 5/39

Answer:

A=0

Step-by-step explanation:

a + 3 + 2a = - 1 + 3a + 4

a+2a-3a=-1+4-3

3a-3a=0.

0=0

We can use the standard normal distribution table or calculate the z-score and find the corresponding area under the curve. The percentage of the population for X ≥ 124.75 is approximately 3.86%.

To find the percentage of the population for X ≥ 124.75, we need to calculate the z-score, which represents the number of standard deviations an observation is from the mean. The formula for the z-score is:

z = (X - μ) / σ

In this case, X is 124.75, μ is 100, and σ is 15. Plugging in these values, we get:

z = (124.75 - 100) / 15 = 1.65

Using the standard normal distribution table or a calculator, we can find the area under the curve to the right of the z-score of 1.65. The area represents the percentage of the population for X ≥ 124.75.

From the standard normal distribution table, we find that the area to the right of the z-score 1.65 is approximately 0.0495. Multiplying this by 100, we get 4.95%.

However, since we are interested in X ≥ 124.75, we need to consider the area to the left of the z-score of 1.65 and subtract it from 1. This gives us:

1 - 0.0495 = 0.9505

Multiplying 0.9505 by 100, we find that the percentage of the population for X ≥ 124.75 is approximately 95.05%. Therefore, the percentage of the population for X ≥ 124.75 is approximately 3.86%.

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Overall, learning math online can be a challenge, but with the right strategies and resources, it can be easier to understand and enjoy.

Mathematics is the study of numbers, shapes, and patterns. It is used to describe, explain, and predict physical and abstract phenomena. Mathematics is an important tool in many fields of study, including natural and social sciences, engineering, medicine, finance, and business. It is also a valuable tool for problem-solving and decision-making in everyday life. Mathematics involves both deductive and inductive reasoning, and is characterized by its use of abstraction, formalism, and logical reasoning. Mathematics is a universal language and its applications are found in a variety of disciplines.

I understand how frustrating it can be to try to learn math online. It can be difficult to understand and remember concepts when we are not in a classroom setting with our peers and teachers. Additionally, not being able to ask questions and get help from our peers or teachers in real-time can make it even more difficult to understand and learn math.



Overall, learning math online can be a challenge, but with the right strategies and resources, it can be easier to understand and enjoy.

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Answer:

Please check the explanation.

Step-by-step explanation:

Writing this relation in set notation using curly braces:

{(1, 3), (2, 5), (3, -1), (4, 0), (5, 6)}

The relation clearly indicates that each input is related to exactly one output. In other words, there is no repetition of 'x' values.

Hence, this relation is a function.

We know that the domain is the set of all x values.

Thus, the domain is: {1, 2, 3, 4, 5}

We know that the domain is the set of all y values.

Thus, the range is: {-1, 0, 3, 5, 6}

Given :

Miki has 104 nickels and 88 dimes. She wants to divide her coins into groups where each group has the same number of nickels and the same number of dimes.

There were 216,000 cars sold last year.

To Find :

Equation that can be used to find the number of trucks, t, sold last year.

Solution :

Let , number of truck sold is t and number of car sold is c.

It is given that the number of cars sold was 39,000 more than three times the number of trucks sold.

So ,

\(c=3t+39000\\\\t=\dfrac{c-39000}{3}\)

Putting value of c = 216000 in above equation , we get :

\(t=\dfrac{c-39000}{3}\\\\t=\dfrac{216000-39000}{3}\\\\t=59000\)

Hence , this is the required solution .

​

An equation is formed of two equal expressions. An equation that can be used to find the number of trucks, t is 216,000 = 39,000 + 3t.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

Given that in the Last year, the number of cars sold was 39,000 more than three times the number of trucks sold. Therefore, we can write,

Number of cars sold = 39,000 + 3 times the number of trucks sold

Number of cars sold = 39,000 + 3t

where t represents the number of trucks sold.

Given that number of cars sold is 216,000. Therefore, the equation can be solved for t as shown below.

216,000 = 39,000 + 3t

216,000 - 39,000 = 3t

3t = 177,000

t = 177,000 / 3

t = 59,000

Hence, an equation that can be used to find the number of trucks, t is 216,000 = 39,000 + 3t.

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a) The solution for b in the equation 2b × 3 = 6 is b = 1.

b) The solution for b in the equation 32 - 3b = 2 is b = 10.

c) The solution for b in the equation 6 + 7b = 41 is b = 5.

d) The solution for b in the equation 100/5b = 2 is b = 10.

a) To solve for b in the equation 2b × 3 = 6, we can start by dividing both sides of the equation by 2 to isolate b.

2b × 3 = 6

(2b × 3) / 2 = 6 / 2

3b = 3

b = 3/3

b = 1

Therefore, the solution for b in the equation 2b × 3 = 6 is b = 1.

c) To solve for b in the equation 6 + 7b = 41, we can start by subtracting 6 from both sides of the equation to isolate the term with b.

6 + 7b - 6 = 41 - 6

7b = 35

b = 35/7

b = 5

Therefore, the solution for b in the equation 6 + 7b = 41 is b = 5.

b) To solve for b in the equation 32 - 3b = 2, we can start by subtracting 32 from both sides of the equation to isolate the term with b.

32 - 3b - 32 = 2 - 32

-3b = -30

b = (-30)/(-3)

b = 10

Therefore, the solution for b in the equation 32 - 3b = 2 is b = 10.

d) To solve for b in the equation 100/5b = 2, we can start by multiplying both sides of the equation by 5b to isolate the variable.

(100/5b) × 5b = 2 × 5b

100 = 10b

b = 100/10

b = 10.

Therefore, the solution for b in the equation 100/5b = 2 is b = 10.

In summary, the solutions for b in the given equations are:

a) b = 1

c) b = 5

b) b = 10

d) b = 10

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The Delhi metro track increased by 20% in the last two years.

The Delhi metro track increased from 200 km to 240 km in the last two years. To calculate the percentage increase, we need to find the difference between the new and old lengths, divide it by the old length, and then multiply by 100.
The difference in length is 240 km - 200 km = 40 km.
The percentage increase, we divide the difference by the old length: 40 km ÷ 200 km = 0.2.
Finally, we multiply by 100 to get the percentage: 0.2 × 100 = 20%.
Therefore, the Delhi metro track increased by 20% in the last two years.
Another way to calculate the percentage increase is by using the formula:
Percentage increase = (new value - old value) ÷ old value × 100.
In this case, the new value is 240 km and the old value is 200 km.
So, the percentage increase = (240 km - 200 km) ÷ 200 km × 100 = 40 km ÷ 200 km × 100 = 0.2 × 100 = 20%.
Therefore, the Delhi metro track increased by 20% in the last two years.

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Answer:

Guido tiene 9 años, Andrés tiene 36 años y David tiene 3 años.

Step-by-step explanation:

Con la información proporcionada, sabes que la edad de los tres suma 48, lo que se puede expresar como:

x+y+z=48, donde:

x es la edad de Guido

y es la edad de Andrés

z es la edad de David

Además, de acuerdo al enunciado puedes decir que la edad del papá Andrés es cuatro veces la edad de Guido y que la edad de David es la tercera parte de la edad de Guido y puedes escribir las siguientes ecuaciones:

y=4x

z=x/3

Ahora puedes reemplazar estas dos ecuaciones en la primera y despejar x:

x+4x+x/3=48

5x+x/3=48

16x/3=48

16x=48*3

16x=144

x=144/16

x=9

Después, puedes reemplazar el valor de x en y=4x para encontrar el valor de y:

y=4x

y=4*(9)

y=36

Finalmente, debes reemplazar el valor de x en z=x/3 para encontrar el valor de z:

z=x/3

z=9/3

z=3

De acuerdo a esto, Guido tiene 9 años, Andrés tiene 36 años y David tiene 3 años.

The infinite series ax/a+x can be expressed as a geometric series with the sum being a/a-x.

The infinite series for ax/a+x can be represented as a geometric series. The first five terms can be expressed as:

\(Term 1: ax/(a+x)\\Term 2: (ax)^2/(a+x)^2\\Term 3: (ax)^3/(a+x)^3\\Term 4: (ax)^4/(a+x)^4\\Term 5: (ax)^5/(a+x)^5\)

The infinite series can be expressed using summation notation as:

\(∑_(n=1)^∞ (ax)^n / (a+x)^n\)

Using the formula for a geometric series, the sum of the infinite series can be calculated as:

\(S = ax/(a+x) * 1/(1-ax/(a+x)) \\ = ax/(a+x) * (a+x)/(a-ax) \\ = ax/(a-ax) \\ = a/a-x\)

Therefore, the infinite series ax/a+x can be expressed as a geometric series with the sum being a/a-x.

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