Determine whether MN and RS are parallel, perpendicular, or neither. Graph each line to verify your answer. 13. M(0, 3), N(2, 4), R(2, 1), S(8,4)

i think it is 18

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

answer: c. is your answer

step-by-step explanation: get me a black leather coat