Answer:
1.2 cm
Step-by-step explanation:
Quadrilateral circumscribing a circle is a quadrangle whose sides are tangent to a circle inside it (see attached diagram).
The area of circumscribed quadrilateral is
where 
is semi-perimeter and r is radius of inscribed circle.
In your case, 
If a quadrilateral is circumscribed over the circle, then the sum of opposite sides is equal, so
so
Now
Question: Simplify
.
First off, you <em>never</em> want square roots on the bottom of a fraction, so let's multiply both sides by
to get rid of it. All we have to do from there is simplify!
Answer:
all possible y values
Step-by-step explanation:
5y + 2 is defined for all values of y.
get their LCD, like you'd with any other fractions, and add them up
Nothing changes if you don't add anything.
Example:
10+10=20
20+0=20
nothing changes.
