cho x={a, b,c}. hãy tìm các phần tử lớn nhất , nhỏ nhất, tối đại, tối tiểu của tập hợp γX với quan hệ thứ tự bao hàm.

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

6cm

step-by-step explanation:

if it's asking for the proper expression then it could be 8x= .8 each person would get a .1   portion of the turkey