Answer:
12 in.
Step-by-step explanation:
The perimeter is calculated by adding all up the sides of a shape. In this case, the shape is a square, considering that all the sides are the same measurements. 3+3+3+3 can be simplified to 3x4. This gives you 12 in. as the perimeter.
![\ \ \ 5 \ (-\frac{1}{5} a = 10 - b) \\ + (2a = 5b -20) \\ \\ a = 30](https://tex.z-dn.net/?f=%5C%20%5C%20%5C%205%20%5C%20%28-%5Cfrac%7B1%7D%7B5%7D%20a%20%3D%2010%20-%20b%29%20%5C%5C%20%2B%20%282a%20%3D%205b%20-20%29%20%5C%5C%20%5C%5C%20a%20%3D%2030)
5× the first equation + the second equation will give an equation of 'a' to its value.
Answer:
Please attach the graph.
Step-by-step explanation:
The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281.
<h3>What echo number is a perfect square</h3>
An <em>echo</em> number has a <em>perfect</em> square if its square root is also a <em>natural</em> number. After some iterations we found that <em>echo</em> number 20222022202220222022 is a <em>perfect</em> square:
![\sqrt{20222022202220222022} = 4496890281](https://tex.z-dn.net/?f=%5Csqrt%7B20222022202220222022%7D%20%3D%204496890281)
The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281. ![\blacksquare](https://tex.z-dn.net/?f=%5Cblacksquare)
To learn more on natural numbers, we kindly invite to check this verified question: brainly.com/question/17429689