In a harris poll of 500 human resource professionals, 150 said that body piercings and tattoos were big grooming red flags. use a 0.01 significance level to test the claim that less than 50% of all human resource professionals say that body piercings are big grooming red flags. answer question 1 to 4 to complete the hypothesis test.

the square root of what number? if you add that, then someone will probably answer the question.

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.