Justin and hayley conducted a mission to a new planet, planet x, to study arm length. they took a random sample of 100 planet x residents. then they calculated a 95% confidence interval for the mean arm length. what does a 95% confidence interval for arm length tell us in this case? (i) i am 95% confident that this interval includes the sample mean (μ) arm length. (ii) i am confident that 95% of all planet x residents will have an arm length within this interval. (iii) i am confident that 95% planet x residents will have arm lengths within this interval. (iv) i am 95% confident that this interval includes the population mean arm length.

answer: a and c are correct

step-by-step explanation:

the +5 is the vertical translation

the added negative symbol in front is the reflection over the y-axis

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

i think the answer is d im not sure

but there’s no any figure there!