if you actually know plz give an explanation to the answer so i know you aren't just answering for points, please help this is due before 12:00

D

Step-by-step explanation:

At least 30 minutes, so this means 30 minutes and above. Now add the probabilities starting from 30

1/4 + 1/4  + 1/8 + 1/16 = 11/16

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.