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Dvinal [7]
2 years ago
7

Can someone help me with this? I cannot figure it out

Mathematics
1 answer:
vfiekz [6]2 years ago
5 0

Answer:

Step-by-step explanation:

To graph by hand I would first convert both equations into y=mx+b.

We start with:

\left \{ {{2x-2y=4} \atop {x+2y=8}} \right.

Solve for y for 2x-2y=4

2x+2y=4\\2y=4-2x\\y=2-x

Solve for y for x+2y=8

x+2y=8\\2y=8-x\\y=4-\frac{x}{2}

Giving the new but equal system of equations:

\left \{ {{y=2x-x} \atop {y=4-\frac{x}{2} }} \right.

From this point on you can graph the two functions to find where the two lines intersect, thats your solution.

I've gone ahead and graphed it on desmos for you

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In a school, only 13 out of 15 student participate in a competition.what is the probability of the student who do not makes it t
Papessa [141]

Answer:

\frac{2}{15}

Step-by-step explanation:

Number of students participating in the competition = 13.

Total number of students in the school = 15.

Thus ,

the number of students who did not make to this competition =

Total number of students - number of students participated

= 15-13 = 2.

Now ,

probability of the student who do not makes it to the competition

= fraction of students who did not make to this competition from the total number of students .

=\frac{2}{15}.

4 0
3 years ago
Find x the missing side length of the triangle
Scilla [17]

Answer:

16.6

Step-by-step explanation:

a = 14

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x² = 277

\sqrt{x^2} =\sqrt{277}

x = 16.6

3 0
2 years ago
A line has a slope of zero Which of the following points could this line pass through
Rina8888 [55]

Answer:

B

Step-by-step explanation:

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

-6 - - 6 / 7 - 3

= 0 / 4 = 0

3 0
2 years ago
Please explain how to find the answer for this
FromTheMoon [43]
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P(A \textrm{ and } B) = \dfrac{3}{10} \cdot \dfrac{2}{5} = \dfrac{3}{25}

Second to last choice.


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3 years ago
The radius of a circle is 3<br> kilometers. What is the<br> circumference?
tino4ka555 [31]
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