Please help, my computer is about to die and this is due in a few minutes. Will mark brainlist if correct

A matrix's inverse can be calculated in a number of stages.

To find the inverse of a matrix, you can use the following steps:

Here is an example:

Find the inverse of the matrix A:

[1 2]

[3 4]

Find the determinant of the matrix: det(A) = 14 - 23 = -2

Find the adjoint of the matrix: adj(A) = [4 -2]

[ -3 1]

Divide the adjoint of the matrix by the determinant: A^-1 = adj(A)/det(A) = [-2 1] / -2 = [1 -1/2]

[ 3/2 -1/2]

Matrix A's inverse is A-1= [1 -1/2].

[3/2 -1/2]

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Answer:

-15/4

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

  =(3-18)/(-14- -18)

  =-15/4

Answer:

Slope = [tex] \sf \frac{-15}{4} [/tex]

Step-by-step explanation:

Now we have to,

→ find the required slope.

Formula we use,

→ Slope(m) = (y2 - y1)/(x2 - x1)

Then the slope will be,

→ m = (y2 - y1)/(x2 - x1)

→ m = (3 - 18)/(-14 -(-18))

→ m = -15/(-14 + 18)

→ [ m = -15/4 ]

Hence, the slope is -15/4.

The matrix will not have an inverse if the determinant is 0; in this case, it is referred to as singular.

An inverse function is a function that gives back the initial value for which an output was provided by another function. The inverse function of y, or [tex]f^{-1}(y)[/tex], will return the value x if f(x) is a function that produces the value y.

Put negatives in front of b and c, swap the locations of a and d, then divide the result by the determinant to determine the inverse of a 2×2 matrix (ad-bc).

Not every matrix of size 2 by 2 has an inverse matrix. The matrix will not have an inverse if the determinant is 0; in this case, it is referred to as singular. Inverses exist only for non-singular matrices.

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Put negatives in front of b and c, swap the locations of a and d, then divide the result by the determinant to determine the inverse of a 2x2 matrix (ad-bc).

Hence, Put negatives in front of b and c, swap the locations of a and d, then divide the result by the determinant to determine the inverse of a 2x2 matrix (ad-bc).

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The line passing through point (-5, -6) is y = -2x - 16.

Define Equation of line.

         y - y₁ = m (x - x₁)  

Given point is (-5, -6) and slope is -2.

We know the formula is,

 y - y₁ = m (x - x₁)  

Let, (x₁, y₁) = (-5, -6)

and, m = -2 (slope)

Now, plug in the value

y - (-6) = -2(x - (-5) )

y + 6 = -2(x + 5)

y + 6 = -2x - 10

y = -2x - 10- 6

y = -2x - 16

Hence, the line passing through point (-5, -6) is y = -2x - 16.

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The criterion if any could prove the triangles are congruent are SSS, SAS, ASA, AAS, and RHS congruence properties.

Two triangles are congruent if all the three corresponding sides of two triangles are the same. There are a few more criteria also. Thus, congruent triangles are mirror images to each other. The mathematical symbol represents congruence is ≅.

In the triangles ΔABC, ΔEFG as shown below, we can identify corresponding angles and corresponding sides are equal.

Diagram attached at the end of solution.

ΔABC≅ΔEFG

Corresponding Angles: ∠A≅∠E,∠B≅∠F,∠C≅∠G

Corresponding sides: AB≅EF,BC≅FG,AC≅EG.

Corresponding vertices: A and E,B and F,C and G

Two triangles of the same size and shape are called congruent triangles. When we rotate, reflect, or translate a triangle, its position or appearance seems identical to the other, also called congruent.

Based on the experiments, there are mainly 5 conditions or rules to compare the two triangles to be congruent. They are SSS, SAS, ASA, AAS, and RHS congruence properties.

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The graph that represents the equation y = 3/2x² - 6x is

B. The graph shows an upward parabola with vertex (2, minus 6) and passes through (minus 1, 7), (0, 0), (4, 0), and (5, 7)

The shape of a quadratic function's graph. is a U-shaped curve,

The graph's vertex, which is an extreme point, is one of its key characteristics. The vertex, or lowest point on the graph or minimal value of the quadratic function, is where the parabola will open up.

The vertex is the highest point on the graph or the maximum value if the parabola opens downward.

In the problem the graph opens up and points are plotted and attached, the graph shows that option is the correct choice

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The given equation can be expressed as xy²+7xy+5y-3=0.

When two expressions are connected with the equals sign (=) in a mathematical formula, it expresses the equality of the two expressions. In English, a well-formed formula with two expressions joined by an equals sign is referred to as an equation; however, cognates of this word in other languages may have slightly different meanings. For instance, the French definition of an equation is one or more variables.

Determine which values of the variables result in the equality to be true in order to solve an equation with variables. The values of the variables that must fulfill the equality to constitute the answer are known as the unknowns, together with the variables for which the equation must be solved. Equations can be classified as either conditional equations or identities.

Given,

(3/y)-5=x(y+7)

(3-5y)/y=(xy+7x)

3-5y=xy²+7xy

xy²+7xy+5y-3=0

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Finding the missing number from the N numbers in the given array arr[] of size N-1 with integers in the range [1, N] is the task. The list must not contain any duplicates.

Java method for locating a missing integer in an array of integers from 1 to N:

Make a temp array temp[] of size n + 1 with a value of 0 for each element.

For each element in the input array arr[i], perform the following.

If (temp[arr[i]] == 0), then temp[arr[i]] is 1.

traverse temp[] and output an element of an array with the value of 0. (This is the missing element).

class GFG; import java.io.*; import java.util.*

public static void findMissing(int arr[], int N)

{

int i;

int temp[] = new int[N + 1];

for (i = 0; i <= N; i++) {

 temp[i] = 0;

}for (i = 0; i < N; i++) {

 temp[arr[i] - 1] = 1;

} int ans = 0;

for (i = 0; i <= N; i++) {

 if (temp[i] == 0)

  ans = i + 1;

} System.out.println(ans);

}

public static void main(String[] args) {

int arr[] = { 1, 3, 7, 5, 6, 2 };

int n = arr.length; // Function call

findMissing(arr, n);

}

}

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A triangular prism and a triangular pyramid with identical bases and heights are related by the fact that the prism's volume is three times that of the pyramid.

When a pyramid and a prism have bases and heights that are equivalent, the pyramid can fit inside the prism. In reality, when this is the case, the pyramid occupies precisely one-third of the prism's volume. This fact enables us to see a correlation between the volumes of a prism and a pyramid when their bases and heights are equal. That is, a prism with an identical height and base has a volume that is 1/3 that of a pyramid.

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Answer:

-5

Step-by-step explanation:

-2-3 is -5 :>

Answer:

y=-5

Step-by-step explanation:

Answer:

  1/6 pan

Step-by-step explanation:

You want to know the portion of the whole represented by 1/4 of 2/3.

Todd ate 1/4 of 2/3 of the pan of brownies. That fraction of the original whole amount is ...

  (1/4)×(2/3) = (1·2)/(4·3) = 2/12 = 1/6

Todd ate 1/6 of the entire pan.

The sum of the squares of three consecutive odd number   11, 13, 15 is 515.

What are consecutive numbers ?

Numbers that follow each other continuously in the order from smallest to largest are called consecutive numbers. For example: 1, 2, 3, 4, 5, 6, and so on are consecutive numbers.

Let the second number = x.

so the first number = x-2

the third number = x + 2

according to the question, the sum of the squares of the numbers = 515

so the formula is:

x² + (x-2)² + (x + 2)² = 515

(a-b)² = a² + b² - 2ab

and,

(a+b)² = a² + b² + 2ab

So, let’s apply these to our equation:

x² + x² + 2² -2*2x + x² + 2² + 2*2x = 515

There are three x² and 2*2 = 4 and 2*2x = 4x. Let’s apply all that to the equation,

3x² + 4 - 4x + 4 + 4x = 515

there is a -4x and a +4x, -4x + 4x = 0, so let’s remove that.

3x² + 4 + 4 = 515

3x² + 8 = 515

3x² = 515 - 8

3x² = 507

x² = 507/3

x² = 169

x = √169

√169 (square root(169)) = 13

x = 13

if x = 13, then the first number = 13–2 = 11 and the third number = 13 + 2 = 15

Hence , the sum of the squares of three consecutive odd number   11, 13, 15 is 515.

11*11 + 13*13 + 15*15 = 515

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Answer:

Step-by-step explanation:

To find the maximum area of one plot, we need to find the greatest common factor of 840 and 396. One way to do this is to use the prime factorization method.

First, we prime factorize 840 and 396:

840 = 2 * 2 * 2 * 3 * 5 * 7

396 = 2 * 2 * 3 * 3 * 11

Then, we find the common factors:

2 * 2 * 3 = 12

So, the greatest common factor of 840 and 396 is 12.

The maximum area of one plot is therefore (840 * 396) / 12 = 140 * 33 = 4620 square meters.

Answer:

[tex]\frac{5}{36} , \frac{6}{49}[/tex]

Step-by-step explanation:

The numerator of these terms is increasing by 1

The denominator is being squared... Look at this

The denominator of the first term is 2² which equals 4

the next denominator is 3² = 9

the next 4² = 16

the next 5² = 25

so, what what's next?

6² = 36   and 7² = 49

Hope I helped! :)

Answer:

The next two terms of the following sequence is 5/36 and 6/49.

Step-by-step explanation:

The pattern in this sequence is that the numerators of the sequence are all positive integers that increase by 1, so I added 1 to each preceding numerator. The denominators of the sequence are consecutive perfect squares (e.g., 4, 9, 16, 25, 36, etc.), so I made each following denominator the next perfect square.

Answer:

Step-by-step explanation:

solved & got 8.6

When an initial/input value is zero, the output of a function is its initial value.

The starting value represents the input at zero, whereas the rate of change relates to how rapidly the output varies in respect to the input.

Thus, if x = 0 in a function, the initial value is defined. It serves as the scenario's beginning point in real life.

A linear equation's y-intercept is frequently thought of as initial value of the function.

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Answer:

177x

Step-by-step explanation:

Answer:

The average rate of change is -4

Step-by-step explanation:

The given function is  f(x) = -(3)x1+3

We want to find the average rate of exchange of this function from x=1 to x=3.

This is the slope of the secant line joining the points (1,f(1)) and (3,f(3)).

From the graph, f(1)=2 and f(3)= -6

The average rate of exchange

=f(3)-f(1)/3-1

=-6-2/3-1

=-8/2

=-4

A Scatter (XY) Plot has points that show the relationship between two sets of data.

Scatter Plots

A Scatter (XY) Plot has points that show the relationship between two sets of data.

In this example, each dot shows one person's weight versus their height.

Example:

The local ice cream shop keeps track of how much ice cream they sell versus the noon temperature on that day. Here are their figures for the last 12 days:

Ice Cream Sales vs Temperature

Temperature °C Ice Cream Sales

14.2°                    $215

16.4°                    $325

11.9°                            $185

15.2°                    $332

18.5°                    $406

22.1°                    $522

19.4°                    $412

25.1°                    $614

23.4°                    $544

18.1°                            $421

22.6°                          $445

17.2°                    $408

And here is the same data as a Scatter Plot:

It is now easy to see that warmer weather leads to more sales, but the relationship is not perfect.

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Answer:

131560.072

Step-by-step explanation:

Because it is increase so we add humdred to the percent and then divide by hundred - 18+100/100 = 1.18

eight years - 1.18 raised to the pwer of 8

worth - 35000

hence it will be - 1.18 raised to the power of 8 x 35000

thank you

Answer:

The answers are in the picture I attached to this response.

Step-by-step explanation:

(1) The equation of a line, in slope-intercept form, is: [tex]y = mx + b[/tex], where m is the slope, and b is the y-intercept.

⭐ What is the slope (m) mean?

⭐ What is the y-intercept (b) mean?

To find the slope, we need to use the formula: [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex] and [tex](y_1, y_2)[/tex] are coordinates you are given.

In this problem, you are given the coordinates (2,6) and (4,9). Let's substitute these coordinates into the slope formula.

[tex]m = \frac{9-6}{4-2}[/tex]

[tex]m = \frac{3}{2}[/tex]

Now, substitute the value of m into the equation of a line.

[tex]y = \frac{3}{2}x + b[/tex]

All we have to do now is substitute the value of b. We are already given that the line intersects the y-axis at (0,3), which means that (0,3) is the y-intercept.

[tex]y = \frac{3}{2}x + 3[/tex]

⭐ How do we graph this equation?

(3) Start by taking the square root of 44 on a calculator.

You should get an irrational number (a number that's digits never terminate or repeat).

Whenever you have questions like these, you are expected to round the number to the nearest tenth.

[tex]\sqrt{44} = 6.6332495807107996982298654733414\\\\\sqrt{44} = 6.6[/tex]

Choose a place on the number line to start your positive integers (1,2,3 . . .) and plot the point 6.6.

6.6 should be a bit after 6.5, which is in between 6 and 7.

(A) The expression for each plane are as follows;

B). The equation to show when the two planes would be at the same altitude is; 700 + 16x = 424 + 22x.

It follows from the task content that the initial altitudes of plane A and B are 700 and 424 respectively.

Hence, since plane A gains altitude at 16 meters per second; The expression for the altitude after x seconds is;

Also, since plane B gains altitude at 22 meters per second; The expression for the altitude after x seconds is;

Therefore, when the two planes are at the same altitude; the equation which is true is;

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The expression to find the total number of slices of pizza is 2 + 3

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

Initial slices of pizza = 2

Additional slices of pizza = 3

This means that

The expression to find the total number of slices of pizza is

Total number of slices of pizza = Initial slices of pizza + Additional slices of pizza

Substitute the known values in the above equation, so, we have the following representation

Total number of slices of pizza = 2 + 3

Hence, the expression is 2 + 3

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The area of the composite figures are as follows;

10. Area of the trapezoids are; 96 cm², 80 cm², 96 cm², 80 cm²

Area of the rectangle at the center =  320 cm²

11. Area of the field on the left is 18,600 m²

Area of the field on the right is 11,000 m²

A composite figure is a figure that consists of two or more regular shapes.

10. The width of each trapezoid are;

(28 - 20)/2 = 4

(24 - 16)/2 = 4

The area of each trapezoid are;

The area of each of the left and right trapezoid = 4 × (20 cm + 28 cm)/2 = 96 cm²

Area of the top and bottom trapezoid = 4 × (16 cm + 24 cm)/2 = 80 cm²

Area of the rectangle at the center = 16 cm × 20 cm = 320 cm²

11. Area of ΔDEI = 0.5 × 80 m × 60 m = 2400 m²

Area of trapezoid EIGF = 0.5 × (60 m + 50 m) × (60 m + 20 m) = 4400 m²

Area of the triangle ΔAGF = 0.5 × 50 m × 80 m = 2000 m²

Area of ΔAHC = 0.5 × 40 m × (20 m + 80 m) = 2000 m²

Area of ΔABC = 0.5 × 30 m × (20 m + 80 m) = 1500 m²

Area of quadrilateral AHCB =  2000 m² + 1500 m² = 3500 m²

Area of triangle ΔCDH = 0.5 × 40 m × (80 m + 60 m) = 2800 m²

Adding together, we get;

2400 + 4400 + 2000 + 2000 + 1500 + 3500 + 2800 = 18,600

The area of composite figure is 18,600 m²\

Area of ΔEFH = 0.5 × 20 m × 40 m = 400 m²

Area of trapezoid GFHJ = 0.5 × (20 m + 40 m) (40 m  + 40 m) = 2400 m²

Area of triangle ΔAGJ = 0.5 × 40 m ×(20 m + 60 m) = 1600 m²

Area of triangle ΔABK = 0.5 × 30 m × 60 m = 900 m²

Area of trapezoid BCF_K = 0.5 × (40 m + 30 m) × (40 m + 20 m) = 2100 m²

Area of triangle ΔCIE = 0.5 × 40 m × (40 m + 40 m) =  1600 m²

Area of triangle ΔCDE = 0.5 × 50 m × (40 m × 40 m) = 2000 m²

Adding the areas together, we get;

400 + 2400 + 1600 + 900 + 2100 + 1600 + 2000 = 11000

The area of the field is 11,000 m²

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Required Conditions for similarity of traingles are:-

What are similar traingle?

Triangles with have the same shape but can distinct sizes are said to be similar triangles. In other words, if two triangles are similar,then they need to follow either of the 2 mentioned condition if  their corresponding sides are proportionately equal and their corresponding angles are congruent.

Conditions for similarity of traingles are:-

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In Microsoft Excel 2007, a maximum of 1,048,576 rows may be used. 15.784 columns. A spreadsheet in Excel is composed of columns and rows.

Row refers to a group of objects placed next to or across from one another. A column is defined as a vertical arrangement of objects based on category. The arrangement is done from left to right. The setup is created from top to bottom. The sum is shown on the far right.

here

The rows are horizontally arranged and designated by the numbers 1, 2, 3, and 4.

The letters that go horizontally down the columns are identified by the letters A, B, C, D, etc.

When a column and a row cross, cells are what result.

In Microsoft Excel 2007, 1,048,576 rows is the maximum number permitted. 15,384 rows.

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By using Akaike Information Criterion(AIC) to compare various models , We need to consider 16 models to find the one with lowest AIC.

The study of statistics focuses on gathering, organizing, organizing, analyzing, interpreting, and presenting data.

A mathematical tool for assessing how well a model matches the data it was derived from is the Akaike information criterion (AIC).

It's formula is:

AIC=2k-2ln(L)

predictors=independent variables=3

k=independent variables+1=4

Categorical variable= 4 levels

Total number of models to be considered = 4 * 4 =16

Since, Every layer (characteristics of variable) must interact with the predictors variable to calculate AIC and find the lowest one.

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