The results of a survey of common allergies was organized into a venn diagram

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

this shows a reflection over the x-axis and is translated one unit down and 6 units to the right (x + 6, y - 1)

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~just a girl in love with shawn mendes

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.