An airline charges a flat fee of $25 for each checked bag under 40 lbs and $2 per pound for each pound over 40, up to a maximum of 100 lbs. Which expression can be used to calculate the cost of checking a bag when the weight, w, is 40 < w < 100 ?

all it means is function 3

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

well what did you do it matters what you did : )

step-by-step explanation: