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Mnenie [13.5K]
2 years ago
9

Which number completes the system of linear inequalities represented by the graph?

Mathematics
2 answers:
NNADVOKAT [17]2 years ago
8 0
Sorry I don’t know the answer
mote1985 [20]2 years ago
8 0

Answer:

1

Step-by-step explanation:

give me brainliest

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Y-a=m(x+b) solve for x
bearhunter [10]

\frac{y-a}{m} = x + b

x = \frac{y-a}{m} - b

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PLEASE HELP 100 POINTS AND BRAINLIEST DUE IN 2 MINUTES
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Answer:

280

Step-by-step explanation:

because I just know. it is that because I know

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Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credi
Vikki [24]
The equation of the circle: (x-a)^2+(y-b)^2=r^2

where:
(a; b) - coordinates of the center
r - a radius

Use: (a\pm b)^2=a^2\pm2ab+b^2\ \ \ \ (*)

We have:

x^2-4x+y^2+8y=-4\\\\x^2-2x\cdot2+y^2+2y\cdot4=-4\ \ \ |add\ 2^2\ and\ 4^2\ to\ both\ sides\\\\\underbrace{x^2-2x\cdot2+2^2}_{(*)}+\underbrace{y^2+2y\cdot4+4^2}_{(*)}=-4+2^2+4^2\\\\(x-2)^2+(y+4)^2=-4+4+16\\\\(x+2)^2+(y-4)^2=16\\\\(x+2)^2+(y-4)^2=4^2

Answer:
The center: (-2; 4)
The radius: r = 4
7 0
3 years ago
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Write the equation of the line that passes through the points (-2,9) and (2,6). Put your answer in fully simplified point-slope
maw [93]

Answer:

4y = -3x +30

Firstly you have to look for the gradient or slope using the points given in the question.

Then substitute the gradient (m) into y= mx+ c

8 0
2 years ago
Please help me now plz I will mark you brainliest
PIT_PIT [208]

Answer:

On the circle

Step-by-step explanation:

Because all of the points on a circle are equidistant from the center, if a circle has a radius of 10 then all of the points are 10 units from the center. Using the Pythagorean Theorem, you know that the distance from (4,0) to (-2,8) is:

\sqrt{(4-(-2))^2+(8-0)^2}=\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10, meaning that it is on the circle. Hope this helps!

7 0
3 years ago
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