The amount of fence a farmer needs to create a garden with width w and length 1 is F = 5w + 21. Which formula represents l in terms of F and w?

Step-by-step explanation:

                  [ subtracting 5w from both sides ]

                            [  5w - 5w = 0 ]

                                  [ divide both sides by 2 ]

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.