Set up the following application problem and don't forget to declare your variable. round to 2 decimal points. there is a moving sidewalk that moves at the speed of 2ft/sec. as larry walks on that sidewalk, he notices that he can travel 110 ft with the sidewalk, in the same time that it would take for him to travel 80ft in the opposite direction. what is larry's normal walking speed (without the moving sidewalk speed, 2ft/sec)

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.