Peter is going to visit 6 cities this summer. He will choose from 8 different cities and the order in which he visits the cities does not matter. How many different city combinations are possible for the summer travelling?

vbbv

step-by-step explanation:

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

mia khalifa

step-by-step explanation:

inch

step-by-step explanation:

yard and mile are too big.