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Nady [450]
3 years ago
11

- 6x + 5y - 2x + 4 =

Mathematics
1 answer:
pychu [463]3 years ago
5 0

Answer:

-8x + 5y + 4

Step-by-step explanation:

- 6x + 5y - 2x + 4 Group like terms

-6x - 2x + 5y + 4

=  - 8x + 5y + 4

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Write an equation for a circle with a diameter that has endpoints at (–10, 1) and (–8, 5). Round to the nearest tenth if necessa
satela [25.4K]

The standard form for the equation of a circle is :

<span><span><span> (x−h)^</span>2</span>+<span><span>(y−k)^</span>2</span>=<span>r2</span></span><span> ----------- EQ(1)
</span><span> where </span><span>handk</span><span> are the </span><span>x and y</span><span> coordinates of the center of the circle and </span>r<span> is the radius.
</span> The center of the circle is the midpoint of the diameter.

 So the midpoint of the diameter with endpoints at (−10,1)and(−8,5) is :

 ((−10+(−8))/2,(1+5)/2)=(−9,3)

 So the point (−9,3) is the center of the circle.

  Now, use the distance formula to find the radius of the circle:

  r^2=(−10−(−9))^2+(1−3)^2=1+4=5

 ⇒r=√5

 Subtituting h=−9, k=3 and r=√5 into EQ(1) gives :

 (x+9)^2+(y−3)^2=5

7 0
3 years ago
5y + 10x = 0<br> y = - 3x<br><br> Plz help me the photo is the directions for the problem
enyata [817]
When substituting, you want to take the y value from one equation and plug it into the y variable in the other equation to find the x value. When you find the c value, you plug the number into one of the equations to get your y value.

3 0
3 years ago
What x value sloves the equation . <br> 3x-5=1
djyliett [7]
3x-5=1
+5 +5
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3 3
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8 0
3 years ago
Which is equivalent to 216 Superscript one-third?
olga2289 [7]

Answer:

6

Step-by-step explanation:

216 raised to the one third power is the same as asking for the cubed root of 216. 6x6x6=216

hope this helps :)

8 0
3 years ago
Read 2 more answers
(2x -5y)<br> What is this answer
Feliz [49]
(2x -5y) = -10 that’s your answer -10
8 0
2 years ago
Read 2 more answers
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