A particle moves along the parabola y=x2 in the first quadrant in such a way that its​ x-coordinate (measured in​ meters) increases at a steady 30 m/sec. How fast is the angle of inclination θ of the line joining the particle to the origin changing when

i really dont know

step-by-step explanation:

what golf ball

step-by-step explanation:

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.