Set up a proprotion and solve. If necessary, round to the nearest hundredth. 2.7 centimeters in 3 seconds
x centimeters in 4 seconds

step-by-step explanation:

if x = 2 you have to find x to finish the problem

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: (1,3) (3,-1) (5,-5) ?

step-by-step explanation: