Answer:
If I'm not mistaken that is the answer
Answer:
6.8181818
Step-by-step explanation:
Answer:
8.06
Step-by-step explanation:
Use the Pythagorean theorem:

The hypotenuse is always the slanted side, or c (x in this picture), but the other numbers can be interchanged. Doesn't matter.
Plug the numbers 4 and 7 into the formula.

Now evaluate them to get 
16+49=65
To get c, take the square root of 65

I got 20,737 but I could be wrong so I will attach my algorithm and work.