Answer:
8.06
Step-by-step explanation:
Use the Pythagorean theorem:
[tex]a^{2} +b^{2} =c^{2}[/tex]
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.
[tex]4^{2} +7^{2} =c^{2} \\[/tex]
Now evaluate them to get [tex]c^2[/tex]
16+49=65
To get c, take the square root of 65
[tex]\sqrt{65} = 8.06[/tex]
