Answer:
![x=\frac{1}{2}\\\\y=-6](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1%7D%7B2%7D%5C%5C%5C%5Cy%3D-6)
Step-by-step explanation:
Given the following system of equations:
![\left \{ {{4x-11y=68} \atop {6x+5y=-27}} \right.](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7B4x-11y%3D68%7D%20%5Catop%20%7B6x%2B5y%3D-27%7D%7D%20%5Cright.)
In order to solve the system of equations using the Elimination Method, you can follow these steps:
- Multiply the first equation by -6 and the secondd equation by 4.
- Add both equations.
- Solve for "y".
Then:
![\left \{ {{-24x+66y=-408} \atop {24x+20y=-108}} \right\\.........................\\86y=300\\\\y=\frac{-516}{86}\\\\y=-6](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7B-24x%2B66y%3D-408%7D%20%5Catop%20%7B24x%2B20y%3D-108%7D%7D%20%5Cright%5C%5C.........................%5C%5C86y%3D300%5C%5C%5C%5Cy%3D%5Cfrac%7B-516%7D%7B86%7D%5C%5C%5C%5Cy%3D-6)
- Substitute the value of "y" into one of the original equations and solve for "x":
![6x+5(-6)=-27\\\\6x=-27+30\\\\x=\frac{3}{6}\\\\x=\frac{1}{2}](https://tex.z-dn.net/?f=6x%2B5%28-6%29%3D-27%5C%5C%5C%5C6x%3D-27%2B30%5C%5C%5C%5Cx%3D%5Cfrac%7B3%7D%7B6%7D%5C%5C%5C%5Cx%3D%5Cfrac%7B1%7D%7B2%7D)
Answer:
x = 45
y = 45
z = 11.1
Step-by-step explanation:
Remark
The triangle is a right triangle. That means that it has 1 right angle.
It is also isosceles which means that the two legs that are not the hypotenuse are equal.
Result: z and 11.1 are equal z = 11.1
More remark
If the triangle is isosceles, that means that the angles that are not right angles must also be equal.
90 + x + y = 180
but x = y
90 + 2x = 180 Subtract 90
2x = 180 - 90 Divide by 2
2x/2 = 90/2
x = 45
I can't remember if this is correct or not but I believe it would be 5 multiplied by 20 plus 6. As I said I don't Know for sure if this is correct or not. However, I hope it help
Answer:Area= (7×7÷2)+(7×18)+(9×10)
(24.5)+(126) +(90)
=240.5
Step-by-step explanation: