Answer:
The square root of an imperfect square
Answer=13 feet long
This information describes a right triangle, with sides 5ft and 12ft.
a²+b²=c²
5²+12²=c²
25+144=c²
169=c²
√169=√c²
13=c
The ladder needs to be 13ft long
No idea what this is, sorry
Answer: (7+1/7) *(7+7)
Step-by-step explanation:
