Ur answer is probably 6?5idk
Answer: x = 5, y = 7
Step-by-step explanation:
First, put the variables together/rearrange:
y - x = 2 & 5x - 4y = -3
Cancel out variable x by multiply the first equation by 5:
5y - 5x = 10 & 5x - 4y = -3
Add equations:
y = 7
Then determine x by plugging y back into the first equation y = x + 2:
x = 5
Answer:
The surface area of the cylinder is ![\mathbf{70\pi\;\textbf{cm}^2}](https://tex.z-dn.net/?f=%5Cmathbf%7B70%5Cpi%5C%3B%5Ctextbf%7Bcm%7D%5E2%7D)
Step-by-step explanation:
The surface area of a cylinder is express
![S=2\pi rh](https://tex.z-dn.net/?f=S%3D2%5Cpi%20rh)
where
is the radius of the cylinder and
its height
Therefore, if the radius of the cylinder is
![r=5\;\text{cm}](https://tex.z-dn.net/?f=r%3D5%5C%3B%5Ctext%7Bcm%7D)
and its height
![h=7\;\text{cm}](https://tex.z-dn.net/?f=h%3D7%5C%3B%5Ctext%7Bcm%7D)
the surface area should be
![S=2\pi r h\\S=2\pi (5\;\text{cm})(7\;\text{cm}) \;\;\;\;\;\Rightarrow\;\;\;\;\; \mathbf{S=70\pi\;\textbf{cm}^2}](https://tex.z-dn.net/?f=S%3D2%5Cpi%20r%20h%5C%5CS%3D2%5Cpi%20%285%5C%3B%5Ctext%7Bcm%7D%29%287%5C%3B%5Ctext%7Bcm%7D%29%20%5C%3B%5C%3B%5C%3B%5C%3B%5C%3B%5CRightarrow%5C%3B%5C%3B%5C%3B%5C%3B%5C%3B%20%5Cmathbf%7BS%3D70%5Cpi%5C%3B%5Ctextbf%7Bcm%7D%5E2%7D)