Rosa is building a slide for her kids. If the ladder is 3 feet tall and she wants the bottom of the slide to be 4.3 feet from the ladder, how long does the slide need to be? If necessary,
round to the nearest tenth.

i honestly dont know

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?