Answer:
7.2
Step-by-step explanation:
Do 6^2 = 36
Do 4^2 = 16
Add them which equal 52
Square root of 52 is 7.2 to 1 decimal Place this is a possible length
Answer:

Step-by-step explanation:
= 2k - x
Given that k = 9, x = 5
= 2(9) - 5
= 18 - 5
= 13
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope his helped!
<h3>~AH1807</h3>
I first think that you need to do 64 squared which is 8 then add the other 8 then you have 16 then do 16 square which equals 4 then I think you do 4 x 3 then add 25 then you get your answer..... hopefully
The answer is b. There is a proof, but it is easily got by proving the other cases wrong.