The weight of an organ in adult males has a bell-shaped distribution with a mean of 325 grams and a standard deviation of 30 grams. Use the empirical rule to determine the following. (a) About 68% of organs will be between what weights?

(b) What percentage of organs weighs between 235 grams and 415 grams?

(c) What percentage of organs weighs less than 235 grams or more than 415 grams?

(d) What percentage of organs weighs between 395 grams and 415 grams?

b 1: 45 am

step-by-step explanation:

its that because if it was in the pm it would be 1345

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

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb