Answer:
6 i guess
Step-by-step explanation:
Answer:
Step-by-step explanation:
y^2 + x^2 = 65
y + x = 7......x = 7 - y
y^2 + (7 - y)^2 = 65
y^2 + (7 - y)(7 - y) = 65
y^2 + 49 - 7y - 7y + y^2 = 65
2y^2 - 14y + 49 = 65
2y^2 - 14y + 49 - 65 = 0
2y^2 - 14y - 16 = 0
2(y^2 - 7y - 8) = 0
2(y + 1)(y - 8) = 0
y + 1 = 0 y - 8 = 0
y = -1 y = 8
solution :
y = -1...........y + x = 7.....-1 + x = 7......x = 7 + 1......x = 8........(8,-1)
y = 8........y + x = 7.....8 + x = 7......x = 7 - 8........x = -1........(-1,8)
The answer would be three-twelves. Because if you multiply the two denominators you get 36 , so then you do 2x12 and 5x3 , and then you get 24 and 15 so then you subtract 24-15=9 , so then you get 9 / 36 , and if you simplify it you get three twelves. There you go.
Answer:
![{(3x + 4)}^{2}](https://tex.z-dn.net/?f=%20%7B%283x%20%2B%204%29%7D%5E%7B2%7D%20)
Step-by-step explanation:
<em>thinked</em><em> </em><em>number</em><em> </em><em>=</em><em> </em><em>x</em>
<em>multiply</em><em> </em><em>by</em><em> </em><em>3</em>
<em>
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<em>add</em><em> </em><em>4</em><em> </em>
<em>
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<em>square</em><em> </em><em>the</em><em> </em><em>result</em>
<em>
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<em>brainliest</em><em> </em><em>appreciated</em>
<em>good</em><em> </em><em>luck</em><em>!</em><em> </em><em>have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>!</em>
So when you are trying to find the solution to the system of equations make sure that you have it where y= -4/5x-6 and y= -30 are written like this:
-30=-4/5x-6
And then solve for x:
Add 6 on both sides.
-24=-4/5x
Then multiply by the reciprocal of -4/5.
-5/4*-24=-5/4*-4/5x
x=30
But then you are gonna want to plug 30 in for x in y=-4/5x-6 to make sure that it is the same as y=-30.