Choose all of the statements that relate to the method of random sampling.

25 employees chosen out of a hat from a company of 250 employees.
Drawing 10 balls from 100 numbered bingo balls in a bowl.
A radio station asks you to phone in your opinion on a political candidate.
A sample in which every member of the population has an equal chance of being chosen.
An internet survey that asks readers their opinion on gun control.
A method where some elements of the population have no chance of selection.

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

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

d

step-by-step explanation: