Hearing loss in teenagers a recent study1 found that, of the participants aged to in the national health and nutrition examination survey, had some hearing loss (defined as a loss of decibels in at least one ear). this is a dramatic increase from a decade ago. the sample size is large enough to use the normal distribution, and a bootstrap distribution shows that the standard error for the proportion is . find a confidence interval for the proportion of teenagers with some hearing loss.

answer is c

step-by-step explanation:

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

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.