please help you just solve the equation and list properties

The quadratic equation is of the form y = ax² + bx + c

In algebra, a polynomial function with one or more variables in which the highest-degree term is of the second degree is known as a quadratic function, a quadratic polynomial, a polynomial of degree just 2, or simply known as a quadratic.

Complete question: The table represents a quadratic function. Write an equation of the function in standard form.

[tex]$$\begin{array}{lllll}x & -9 & -7 & -5 & -3\end{array}$$$\begin{array}{lllll}y & 0 & 8 & 8 & 0\end{array}$[/tex]

y=

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Answer:

hmmm

Step-by-step explanation:

what does the j, k, m, and l stand for?

The augmented matrix for the system of equations is  [tex]\left[\begin{array}{ccc}\frac{6}{5} \\\frac{1}{10} \\\frac{23}{5} \end{array}\right][/tex]

A matrix is a rectangular array or table where data is organized into rows and columns, and "matrixes" is the plural version of matrix. It doesn't matter how many columns and rows they have. Matrices can be used for a variety of operations, including addition, multiplication, transposition, and scalar multiplication. When executing these matrix operations, certain guidelines must be followed. For example, matrices can be added to or subtracted from if only their rows and columns are the same, whereas they can be multiplied if only their first and second sets of columns are exactly the same.

A =[tex]\left[\begin{array}{ccc}1&-2&0\\-5&8&2\\0&4&1\end{array}\right] \left[\begin{array}{ccc}X\\Y\\Z\end{array}\right] =\left[\begin{array}{ccc}1\\4\\5\end{array}\right][/tex]

Ax = B

multiply by [tex]A^{-1}[/tex] to both side

 [tex]A^{-1}[/tex]Ax =  [tex]A^{-1}[/tex]B

x = [tex]A^{-1}[/tex]B

[tex]\left[\begin{array}{ccc}0&\frac{-1}{5} &\frac{2}{5} \\\frac{-1}{2} &\frac{-1}{10} &\frac{1}{5} \\\ 2&\frac{2}{5} &\frac{2}{5} \end{array}\right][/tex]= [tex]A^{-1}[/tex]

X = [tex]\left[\begin{array}{ccc}0&\frac{-1}{5} &\frac{2}{5} \\\frac{-1}{2} &\frac{-1}{10} &\frac{1}{5} \\\ 2&\frac{2}{5} &\frac{2}{5} \end{array}\right][/tex][tex]\left[\begin{array}{ccc}1\\4\\5\end{array}\right][/tex]

X = [tex]\left[\begin{array}{ccc}\frac{6}{5} \\\frac{1}{10} \\\frac{23}{5} \end{array}\right][/tex]

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Answer:

y = 90

Step-by-step explanation:

Given,

x and y vary directly

Also, when y = 120, x = 15

So,

x = 1, y = 120/15 = 8

Therefore, when x = 6, y = 90

Step-by-step explanation:

you can ask questions for clarification

Answer:

  2x +y = 1

Step-by-step explanation:

You want the equation of a line parallel to 2x+y=4 through point (-1, 3).

A parallel line will have the same slope, which is a function of the ratio of the x- and y-coefficients. Hence, the equation of the parallel line can use the same coefficients. It will have a constant suitable for the given point.

  given: 2x +y = 4

  parallel: 2x +y = c

  through point (-1, 3): 2x +y = 2(-1) +(3) = 1

The equation of the parallel line is 2x+y = 1.

If a student picks randomly then the expected value of his or her score for a problem is 1.5.

Each question on a multiple-choice exam has four choices.

One of the choices is correct, worth four points.

Another choice is wrong but carries partial credit for one point.

The other two choices are wrong and worth a negative one point.

Each has a probability of getting selected is 0.25.

[tex]0.25*5+0.25*1+0.25*0+0.25*0[/tex]

[tex]1.25+0.25[/tex]

[tex]1.5[/tex]

What is the expected value?

The expected value denotes potential. The occurrence of a random event is the subject. Its fundamental notion is that something is probable to occur.

Actually, the anticipated value may be viewed as the mean of a random variable. This indicates that the anticipated value is the average of all the values acquired if a probability experiment were repeated again while keeping track of the outcomes. The anticipated value of a game of chance is what you should expect to occur over the long run of several trials.

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Answer:

second option

6.

We know area of circle is

Radius increases at a rate of 4.

So, we can write:

We want rate of change of area. Thus,

We want dA/dt at r = 7, so substituting all that we know:

The correct answer: 56*pi m^2/min

Answer:

a=11

Step-by-step explanation:

If both triangles have two sides E and G the same then thethird side F and H must be equal

EF=EH

6a=55+a

5a=55

a=11

The worth of the share after a 15% fall will be $47.21.

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that the value of a share of stock on the stock market decreased by 15%. If it used to be worth $55.55.

The value of the share after 15% fall will be calculated as:-

Decreased amount = 55.55 - ( 55.55 x ( 15 / 100)

Decreased amount = $47.21

Therefore, the worth of the share after a 15% fall will be $47.21.

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Answer: The Associative Property

Step-by-step explanation:

Example:

[tex]a * (b * c) = (a * b) *c[/tex]

[tex]2 *(4 * 5) = (2 * 4) * 5[/tex]

The expression given relating to the take all have an equivalent ratio of 1:5.

It should be noted that ratio is simply used to show the comparison between two or or more things.

In this case, in the table, the ratio given will be illustrated as:

2/10 = 1/5 = 1:5

6/30 = 1/5 = 1:5

10/50 = 1/5 = 1:5

12/60 = 1/5 = 1:5

In this case, it should be noted that for every number that was illustrated, we have an equivalent value of 1:5. Therefore, this explains that it's an equivalent ratio.

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Answer

Explanation

We can approximate the distribution to the normal distribution.

As we know the mean of the sample and standard deviation of the population

Step-by-step explanation:

[tex] \sqrt{8} x - \sqrt{2} x = 4[/tex]

[tex]x( \sqrt{8} - \sqrt{2} ) = 4[/tex]

[tex]x = \frac{4}{ \sqrt{8} - \sqrt{2} } [/tex]

the second term could be positive or negative

therefore

x=2.83 or

=-2.83

which is the square root of 8 - and positive

The length of the actual schoolyard given the scale is 144 meters

A scale drawing is either an enlarged or reduced image of another image or object. A scale drawing is enlarged or reduced using a scale. The scale drawing is usually reduced at a constant dimension using a scale. A scale is the ratio of the dimensions of the scale drawing and the dimensions of the original image.

Length of the actual schoolyard = (length of the school yard x scale of the schoolyard) / scale of the drawing

(324 x 4) / 9 = 144 meters

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Answer:

The graph depicting inequality y > -2x - 3 is C

A technical definition of a function is: a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

In this case, it would be a function

Answer:

Negative 2, negative 3 + i StartRoot 3 EndRoot, negative 3 minus i StartRoot 3 EndRoot.

Step-by-step explanation:

So basically that whole last section you had your answer should look like this:

Answer:

[tex]{ \tt{volume = \frac{4}{3} \pi {r}^{3} }} \\ \\ { \tt{v = \frac{4}{3} \pi {r}^{3} }} \\ \\ { \tt{area = \frac{dv}{dr} = 4\pi {r}^{2} }} \\ \\ { \tt{area = \frac{d(3x + 1)}{dx} }} \\ \\ { \tt{area = 3 \: {cm}^{2} }}[/tex]

Answer:

59.40

Step-by-step explanation:

3/2d

DIFFERENTIATE W.R.T. D

3

2

​

≈0.666666667

Answer:

Step-by-step explanation:

Transversal or Corresponding angles

x=5

Answer:

a: alternate angle

Step-by-step explanation:

alternative relation

We have that the following two points lie on the line:

• (-2, 0) and (4, 6)

And we need to find the equation of the line that passes through both points.

To find the equation of the line, we can proceed as follows:

1. Apply the two-point equation of the line, which is given by:

2. We have to label both points as follows:

• (-2, 0) ---> x1 = -2, y1 = 0

• (4, 6) ---> x2 = 4, y2 = 6

3. Now, we can substitute the corresponding points into the two-point equation of the line:

Therefore, we have that the slope of the line is m = 1, and the equation of the line is y = x + 2.

Therefore, in summary, the equation of the line is y = x + 2 (Option D).

The solution of the equation −46x + 874 = 86 − x will be 17.51 which is that number.

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

−46 times a number minus 19 is equal to 86 less than the number.

Let the number be x. Then the equation is given as,

−46(x − 19) = 86 − x

Simplify the equation, then we have

−46x + 874 = 86 − x

45x = 788

x = 788 / 45

x = 17.51

The solution of the equation −46x + 874 = 86 − x will be 17.51 which is that number.

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Present age of father is 48 years and that of son is 23 years.

Let the age of father be x years

And the son's age be y years

According to the question,

x - y = 25 -----------1

15 Years ago, x= 6( y - 15 )

x= 6y - 90 -------------2

Substituting value of x from equation 2 in equation 1, we get

6y - 90 - y = 25

5y -90 = 25

5y = 25+90

5y= 115

y= 23

Therefore son's age is 23 years and from equation 1 we get x= 25+y = 25+23 = 48 years. So father's age is 48 years.

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The thing that is wrong with the bookkeeper’s entry assuming Karlin uses the allowance method is that the company uses allowance method and thus the write-off entry would not be to bad debt account.

How yo illustrate the information?

It should be noted that because the business is using the allowance approach in this instance, the write-off entry would not be to the account for bad debts. To write off an account, a debit must be made to a separate account that is kept as an allowance for dubious accounts.

Since the receivables would not be collected, the accounts receivable account would be credited. In this case,the write off isn't appropriately illustrated in the account.

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The new bookkeeper at Karlin Construction Company was asked to write off two accounts totaling $1,610 that had been determined to be uncollectible. Accordingly, he debited Accounts Receivable for $1,610 and credited Bad Debt Expense for the same amount.

Determine what was wrong with the bookkeeper’s entry assuming Karlin uses the allowance method.

The answer is x = 2

I have attached a picture with the work

In the picture, There is graph with a triangle SNZ. The reflected triangle of y=3 as (1,2),(5,3) and (5,5).

Given that,

In the picture, There is graph with a triangle.

The triangle is SNZ.

We have to find the reflection across y=3.

We have to draw a line on y=3.

On the line y=3,

Z point is there so it will be same that is (5,3).

Now, the point S is on (5,1)

Here, y is 1 that is 3+2=5

So, we take the reflected S point as (5,5)

Now, the point N is on (1,4)

Here, y is 4 that is 3-1=2

So, we take the reflected N point as (1,2).

Therefore, we get the reflected triangle of y=3 as (1,2),(5,3) and (5,5).

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