Answer: The value of x is 5.970.
Step-by-step explanation:
Given: The square has sides length of X cm.
Let r be the radius of the circle.
The square fits exactly inside a circle with each of the vertices being on the circumference of the circle.
Then diagonal of square = diameter of circle
i.e.
[Diagonal of square =
(side)]
i.e. 
area of circle =
i.e. 

Hence, the value of x is 5.970.
<em>Hello!</em>
<em>The expanded form is:</em>
<em>600,000 + 80,000 + 700 + 5</em>
<em>Toodles~</em>
Answer:

Step-by-step explanation:
Let the two numbers be x and y
So we have:

using the elimination method, add the two equations together:

solve for x:

substitute our value for x back into the first equation we made:

therefore,

Answer:The diameter is 12cm
Step-by-step explanation:
The answer is .1391
Hope this helps!
(If your confused, I just put this in a calculator)