Answer:
x= to 5
Step-by-step explanation:
5. 4 rows of circles with 4 columns of circles
6. A Hexagon with 4 circles
ANSWER

EXPLANATION
The given expression is

To find an expression for d in terms of a, b, and c, means we want to make d the subject of the relation.
This means that, we need to isolate d on one side of the equation while all other terms are on the other side.
We subtract from both sides of the equation to obtain,

We now divide through by -1, to get,

Or

The topic is change of subject
Answer:
8
Step-by-step explanation:
Use the pythagorean theorem.