A contractor is purchasing stone tiles for a new patio. Each tile cost $5, and he wants to spend between $300 and $600, inclusive. Write an inequality that represents the number of tiles he can purchase and then figure out the possible number of tiles he can purchase

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.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8