Answer:
cos
Step-by-step explanation:
its adjacent over hypotenuse
Answer:
could be on 3/6 or 4/8
Step-by-step explanation:
Sorry it is the same thing I had talked about above <span>More videos more you will pay to rent them. Hope this helps you </span>
Answer:
The solution to the system of equations be:
(x, y) = (15, -25)
Therefore, the fourth system of equations i.e. 2x+y=5 and 2x – y=55 has the ordered pair (15, – 25) as its solution.
Step-by-step explanation:
Let us solve and check the 4th system of equations
2x+y=5
2x – y=55
solving the system of equations
![\begin{bmatrix}2x+y=5\\ 2x-y=55\end{bmatrix}](https://tex.z-dn.net/?f=%5Cbegin%7Bbmatrix%7D2x%2By%3D5%5C%5C%202x-y%3D55%5Cend%7Bbmatrix%7D)
subtracting
![2x-y=55](https://tex.z-dn.net/?f=2x-y%3D55)
![-](https://tex.z-dn.net/?f=-)
![\underline{2x+y=5}](https://tex.z-dn.net/?f=%5Cunderline%7B2x%2By%3D5%7D)
![-2y=50](https://tex.z-dn.net/?f=-2y%3D50)
so the system of equations becomes
![\begin{bmatrix}2x+y=5\\ -2y=50\end{bmatrix}](https://tex.z-dn.net/?f=%5Cbegin%7Bbmatrix%7D2x%2By%3D5%5C%5C%20-2y%3D50%5Cend%7Bbmatrix%7D)
solve -2y = 50
![-2y=50](https://tex.z-dn.net/?f=-2y%3D50)
Divide both sides by -2
![\frac{-2y}{-2}=\frac{50}{-2}](https://tex.z-dn.net/?f=%5Cfrac%7B-2y%7D%7B-2%7D%3D%5Cfrac%7B50%7D%7B-2%7D)
![y=-25](https://tex.z-dn.net/?f=y%3D-25)
![\mathrm{For\:}2x+y=5\mathrm{\:plug\:in\:}y=-25](https://tex.z-dn.net/?f=%5Cmathrm%7BFor%5C%3A%7D2x%2By%3D5%5Cmathrm%7B%5C%3Aplug%5C%3Ain%5C%3A%7Dy%3D-25)
![2x-25=5](https://tex.z-dn.net/?f=2x-25%3D5)
Add 25 to both sides
![2x-25+25=5+25](https://tex.z-dn.net/?f=2x-25%2B25%3D5%2B25)
Simplify
![2x=30](https://tex.z-dn.net/?f=2x%3D30)
Divide both sides by 2
![\frac{2x}{2}=\frac{30}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7B2%7D%3D%5Cfrac%7B30%7D%7B2%7D)
simplify
![x=15](https://tex.z-dn.net/?f=x%3D15)
Thus, the solution to the system of equations be:
(x, y) = (15, -25)
Therefore, the fourth system of equations i.e. 2x+y=5 and 2x – y=55 has the ordered pair (15, – 25) as its solution.
Answer:slope is -2/3
And the y intercept is .75
Step-by-step explanation:
First you subtract the 8x so it would be 12y=-8x+9. Then you divide all of the other side by 12, it then leaves you with Y=-2/3x+.75