Can you me simplify 3.2y+4.3y−6.1(y−1)

Factor out the -6.1(y-1)

So 6.1y-7.1

-6.1y+3.2y+4.3y=1.4y

1.4y + 6.1. is the answer.

1,589.63 in.^3

step-by-step explanation:

i hope this you : d

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