9 simplified is radical 3 then 2 on the outside make the answer 3
Does it say anything about slope?
Answer:
7 . time os on axis X. total vector lenght is 7.
The answer is 12 because (a^2 + b^2 = c^2)
5^2 + b^2 = 13^2
25 + b^2 = 169
169- 25 = 144

Sqaure root of 144 is 12 so If we plug that in..
25 + 144 = 169
5^2 + 12^2 =13^2
This all checks out
~Hope This helps