1. Daniel and his friends are at an outdoor concert. They were close to the stage and it was too loud. They moved back so that they were a distance 6 times further away. By how much did the sound level decrease when Daniel and his friends moved away from the source of the sound? 1 How much the intensity of sound decreases with increasing relative distance from a source can be found with this expression: or d-?. Use this distance. distance relationship to calculate how much the sound level decreased and complete the statement below, of what it When Daniel and his friends moved back 6 times further away from the source of the sound, the sound level was approximately was when they were closer

step-by-step explanation:

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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.

nope lol

step-by-step explanation: