In a recent year when machines in the country generated 1891 billion KWH of electricity enough to serve over 16 million households the nations total electricity production year was 4096 billion KWH What percent of the total energy production was generated by the wind machine round to the nearest tenth of a percent

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

k

step-by-step explanation:

domit

55 degrees because 55+55=110 degrees