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.

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)

its   c, f, a

step-by-step explanation: