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.

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²