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Anna11 [10]
3 years ago
9

Uhh can someone tell me how brainly works

Mathematics
2 answers:
Nesterboy [21]3 years ago
6 0

Answer:

You ask a question from your homework or whatever and people answer your question in exchange of points. Or you answer others questions and get points for answering it

Step-by-step explanation:

asambeis [7]3 years ago
4 0
You can ask and answer questions
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What is -3y(y-8)(2y+1)=0
Marta_Voda [28]

Step-by-step explanation:

(-3y^2+24y)(-6y^2-3y)

open the bracket and collect the like terms

-3y^2-6y^2+24y-3y

-9y^2+21y

7 0
3 years ago
Calculate the perimeter of this shape 12cm 18cm
EastWind [94]

Answer:

30

Step-by-step explanation:

perimeter = side 1+side 2

12+18=30

4 0
3 years ago
Read 2 more answers
1. Slove the system of equations, first by graphing, and then algebraically. (8 points) y=x-2 and y=-2x+7
Anton [14]

The solution of the equation is x=3 and y=1

Explanation:

The equations are y=x-2 and y=-2 x+7

First we shall solve the equation graphically.

The image of the graph is attached below.

This contains the solution to the system of equations.

The equations y=x-2 and y=-2 x+7 are plotted on the graph.

The intersection of these two equations are the solutions of the system of equations.

Thus, the intersection of the two equations are x=3 and y=1

Now, we shall solve the equation algebraically.

Let us solve the equation using substitution method.

Let us substitute y=x-2 in y=-2 x+7, we get,

x-2=-2x+7

Adding both sides by 2x, we have,

3x-2=7

Adding both sides by 2, we get,

3x=9

Dividing both sides by 3,

x=3

Thus, the value of x is 3.

Substituting x=3 in y=x-2, we get,

y=3-2\\y=1

Thus, the value of y is 1.

Hence, The solution of the equation is x=3 and y=1

4 0
3 years ago
Identify the median and IQR of the data set below.20222426283032Your answerWhich dota
Dennis_Churaev [7]

We are given a boxplot that contains some data. We will use the information below to analyze the given question.

STEP 1: Median

From the image above, we can see that the median represents the line drawn inside the box

This gives;

\text{Median}=24

STEP 2: Interquartile range

The interquartile range is the difference between the third quartile and the first quartile.

\begin{gathered} q_3=28 \\ q_1=22 \\ \text{IQR}=28-22 \\ \text{IQR}=6 \end{gathered}

4 0
1 year ago
The point-slope form of a line that has a slope of
saveliy_v [14]

Answer:

It is B

Step-by-step explanation:

5 0
3 years ago
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