All categories

3 years ago

Will mark brainliest

Mathematics

2 answers:

sertanlavr [38]3 years ago

6 0

Answer:

Step-by-step explanation:

Nimfa-mama [501]3 years ago

5 0

Answer:

b is the best answer

Step-by-step explanation:

You might be interested in

I need to know the area of this triangle and I would like to have an explanation because I dont know how to do it I know the for

Softa [21]

Answer:

18 square units

Step-by-step explanation:

When one side is vertical or horizontal, it is convenient to find the height from the opposite vertex to that side. It is generally an integer number of grid squares.

Here, the height is 4 -(-2) = 6. The base length is 1 -(-5) = 6. That means the area is ...

A = 1/2bh

A = 1/2(6)(6) = 18 . . . . square units

_____

<em>Alternate solution</em>

If you want to go at this the hard way, you can find the length of LK and the distance of J to that line.

The length of LK is ...

d = √((x2 -x1)^2 +(y2 -y1)^2) = √((4 -(-2))^2 +(3 -(-5))^2) = √(36 +64) = 10

The distance to line LK can be found by writing the equation of the line LK in general form:

4x -3y -7 = 0

Then the distance formula for point (x, y) is ...

d = |4x -3y -7|/√(4^2 +3^2)

d = |4(-2) -3(1) -7|/5 = |-8 -3 -7|/5 = 3.6

Using the area formula with these dimensions gives ...

A = 1/2bh = 1/2(10)(3.6) = 18 . . . . square units

5 0

2 years ago

Read 2 more answers

melamori03 [73]

Answer:

In graph theory and computer science, an adjacency matrix is a square matrix used to represent a finite graph. The elements of the matrix indicate whether pairs of vertices are adjacent or not in the graph.

In the special case of a finite simple graph, the adjacency matrix is a (0,1)-matrix with zeros on its diagonal. If the graph is undirected, the adjacency matrix is symmetric. The relationship between a graph and the eigenvalues and eigenvectors of its adjacency matrix is studied in spectral graph theory.

The adjacency matrix should be distinguished from the incidence matrix for a graph, a different matrix representation whose elements indicate whether vertex–edge pairs are incident or not, and degree matrix which contains information about the degree of each vertex.

3 0

3 years ago

Marty bought 4 new books today. He plans to read 2 of these while on vacation. How many combinations of 2 books from the group o

MatroZZZ [7]

There are 6 different combinations of 2 books from the group of 4 that he could choose to do.

Let's say all of the books were letters.
Books a, b, c, and d.

Different combinations include:

ab, ac, ad, bc, bd, and cd.

5 0

4 years ago

Choose the equivalent system of linear equations that will produce the same solution as the one given below. (1 point) 4x − 2y =

goldenfox [79]

Answer:

<h3>Option d) 4x + 2y = 10 and 8x = 16 is correct</h3><h3>Therefore 4x + 2y = 10 and 8x = 16 equations have equivalent solution (2,1) is same as the solution of given linear system of equations</h3>

Step-by-step explanation:

Given equations are

$4x-2y=6\hfill (1)$

$2x+y=5\hfill (2)$

<h3>To find the the equivalent system of linear equations that will produce the same solution as for the given equation :</h3>

First find the solution to the given system of equations by elimination method

Multiply the equation (2) into 2 we get

$4x+2y=10\hfill (3)$

Now adding the equations (1) and ( 3) we get

$4x-2y=6$

$4x+2y=10$

_______________

$8x=16$

$x=\frac{16}{8}$

x=2

Therefore the value of x is 2

Substitute the value of x in equation (1) we get

$4(2)-2y=6$

$8-2y=6$

$-2y=6-8$

$-2y=-2$

$y=\frac{-2}{-2}$

y=1

Therefore the value of y is 1

Therefore the solution to the given system of equations is (2,1)

<h3>Now to find the equivalent system of equations have same solution (2,1)</h3>

Verify the equations $4x+2y=10\hfill (4)$ and 8x = 16

From 8x=16

$x=\frac{16}{8}$

x=2

Therefore the value of x is 2

Substitute x=2 in equation (4) we get

4(2)+2y=10

8+2y=10

2y=10-8

2y=2

$y=\frac{2}{2}$

y=1

Therefore the value of y is 1

Therefore the solution is (2,1)

<h3>Therefore option d) 4x + 2y = 10 and 8x = 16 equations have equivalent solution (2,1) is same as the solution of given linear system of equations </h3>

3 0

3 years ago

Write a fraction setting the vertical length of the larger triangle over its horizontal length. What does this fraction represen

Harman [31]

Answer:

$Ratio = \frac{2}{3}$